vitrineeveryday life across time

vitrine · United States record · 5 atlas plates

An atlas of ordinary life

The rooms hold snapshots; the plates follow change. These exhibits are arranged around 5 questions rather than one long register of charts. Every mark still opens the sourced record behind it, and every silence in the record remains visible. Choose another country wing.

Open selectivelyEach plate begins with one chart open. The rest stay folded until chosen.
Inspect the evidenceEvery plotted point opens its source, population, year, and confidence tier.
Read the silenceA broken line or empty decade is a documented gap, not an invitation to interpolate.

Plate I · 7 exhibits

The household

Who made up the family, and how long did life last?

Population records describe the household from the outside: its size, its prevalence, and the health conditions surrounding it. The gaps show where the national series had not yet learned to count.

Life expectancy at birthyears (all races, both sexes) 7 of 13 rooms charted
Infant mortalitydeaths under age 1 per 1,000 live births 9 of 13 rooms charted
The mortality revolution: heart disease, cancer, strokeage-adjusted deaths per 100,000 population 9 of 13 rooms charted
⚠ Three trajectories on one axis: heart disease peaked early and fell steadily; cancer rose for decades before turning; stroke fell dramatically throughout. Cancer survival is charted separately (different unit and source family).
Cancer 5-year relative survival% surviving 5 years after diagnosis (SEER) 7 of 13 rooms charted
People in poverty% below the official poverty line 7 of 13 rooms charted
Average family sizepersons per family 10 of 13 rooms charted
⚠ The 1900s datum (5.31) is from the 1901 BLS wage-earner survey — 0.7 persons above the Census 1900 national average of 4.61; the survey and census describe different populations.
⚠ The 1940s point is 1947 (first postwar CPS tabulation), not 1940. These averages describe family size, not the composition of a particular household or the cause of changes over time.
Number of familiesfamilies in the United States 9 of 13 rooms charted

Plate II · 6 exhibits

The threshold

When did shelter become infrastructure?

Tenure, plumbing, cooling, mobility, and floor area entered the record on different clocks. Read together, they show a house becoming a bundle of systems rather than a single possession.

Homeownership% of occupied housing units owner-occupied 13 of 13 rooms charted
Complete plumbing% of homes with complete plumbing 7 of 13 rooms charted
Air conditioning% of households with AC 6 of 13 rooms charted
Vehicle at home% of households with a vehicle 7 of 13 rooms charted
Median home sizemedian sq ft, new single-family houses completed 6 of 13 rooms charted
Median gross rentUSD/month, nominal (specified renter-occupied units) 7 of 13 rooms charted
⚠ Nominal dollars — the CPI arc and affordability dashboard provide deflation context. No 2010s or 2020s point: Census Historical Housing Tables end at 2000; ACS rent data (Table B25064) would extend the arc in a future curation pass.

Plate III · 6 exhibits

Signals into the home

How did the outside world cross the walls?

Broadcast, voice, cable, computing, and networks arrived in waves. Short series remain short: an absent line is not filled from a later technology with a similar name.

Radio% of households 1 of 13 rooms charted
Television% of households 3 of 13 rooms charted
Household landline telephone% of households 5 of 13 rooms charted
⚠ The 1900s source combines several technologies in one headline percentage, so its 5% is not plotted as a telephone datum.
⚠ 1910s–1930s sources counted telephones per 1,000 population, not households — those decades render as gaps rather than a unit splice.
Cable television% of households with TV 3 of 13 rooms charted
Home computer% of households 1 of 13 rooms charted
Internet at home% of households 1 of 13 rooms charted

Plate IV · 11 exhibits

The household economy

Where did the family's time and money go?

Paid hours, unpaid production, prices, and the food budget expose the work behind the room. This wing also holds the computed affordability exhibits: ratios made at build time, never authored as facts.

Affordability over timeFive annual ratios trace housing, cars, wages, food, and real pay through recessions and shocks. Enter the annual gallery →
A median home · in hours of workPrice ÷ the room's wage anchor · computed at build 9 of 13 rooms charted
A new car · in hours of workPrice ÷ the room's wage anchor · computed at build 13 of 13 rooms charted
⚠ Pre-1970 car prices are wholesale averages; 1970+ are BEA transaction prices — the jump at 1970 partly reflects the methodology change, not only real price change.
⚠ Share-of-income mixes income concepts across decades (family income (period cost-of-living survey), total money income); a step between points may reflect the concept change, not affordability.
⚠ Price and anchor years differ by more than 3 years in: 1900s, 1940s, 2020s — the hours axis is not strictly inflation-free there.

Tier letters carry the weakest input. The ratio is computed, never authored as a fact.

Budget compositionShare of household expenditure · fixed categories 6 rooms charted
⚠ Survey populations differ across the century — 1901 wage-earner families vs modern consumer units; each bar links to its placard, which names who was measured.
’00srent: 12.95% — 1900s (rent 12.95%)12.95clothing: 14.04% — 1900s (clothing 14.04%)14.04food: 42.54% — 1900s (food 42.54%)42.54other: 30.47% — 1900s (fuel & light 5.25% + furniture 3.42% + tobacco 1.42% + liquor/sickness/amusements 14.51% + misc 5.87%)30.47rent 12.95% · clothing 14.04% · food 42.54% · other 30.47%’70shousing: 26% — 1970s (housing 26%)26apparel: 6.4% — 1970s (apparel 6.4%)6.4food: 17.1% — 1970s (food 17.1%)17.1healthcare: 5.3% — 1970s (healthcare 5.3%)5.3transportation: 17.6% — 1970s (transportation 17.6%)17.6other: 21.7% — 1970s (insurance/pensions 8.7% + entertainment 7.8% + cash contributions 3.7% + education 1.5%)21.7housing 26% · apparel 6.4% · food 17.1% · healthcare 5.3% · transportation 17.6% · other 21.7%’80shousing: 29.5% — 1980s (housing 29.5%)29.5apparel: 6% — 1980s (apparel 6%)6food: 15% — 1980s (food 15%)15healthcare: 4.1% — 1980s (healthcare 4.1%)transportation: 20.6% — 1980s (transportation 20.6%)20.6other: 19.2% — 1980s (insurance/pensions 9.8% + entertainment 5.3% + cash contributions 2.6% + education 1.5%)19.2housing 29.5% · apparel 6% · food 15% · healthcare 4.1% · transportation 20.6% · other 19.2%’90shousing: 31.3% — 1990s (housing 31.3%)31.3apparel: 5.7% — 1990s (apparel 5.7%)5.7food: 15% — 1990s (food 15%)15healthcare: 4.3% — 1990s (healthcare 4.3%)transportation: 18.7% — 1990s (transportation 18.7%)18.7other: 20% — 1990s (insurance/pensions 10.1% + entertainment 6% + cash contributions 2.1% + education 1.8%)20housing 31.3% · apparel 5.7% · food 15% · healthcare 4.3% · transportation 18.7% · other 20%’00shousing: 32.3% — 2000s (housing 32.3%)32.3apparel: 4.6% — 2000s (apparel 4.6%)4.6food: 13.9% — 2000s (food 13.9%)13.9healthcare: 4.5% — 2000s (healthcare 4.5%)4.5transportation: 18.6% — 2000s (transportation 18.6%)18.6other: 22.2% — 2000s (insurance/pensions 12.1% + entertainment 5.1% + cash contributions 2.6% + education 2.4%)22.2housing 32.3% · apparel 4.6% · food 13.9% · healthcare 4.5% · transportation 18.6% · other 22.2%’10shousing: 33% — 2010s (housing 33%)33apparel: 3.6% — 2010s (apparel 3.6%)food: 14% — 2010s (food 14%)14healthcare: 5.8% — 2010s (healthcare 5.8%)5.8transportation: 18.3% — 2010s (transportation 18.3%)18.3other: 21.7% — 2010s (insurance/pensions 11.6% + entertainment 5.1% + cash contributions 2.6% + education 2.4%)21.7housing 33% · apparel 3.6% · food 14% · healthcare 5.8% · transportation 18.3% · other 21.7%
Inspect the folded categories
1900s
housing: rent 12.95%
apparel: clothing 14.04%
food: food 42.54%
other: fuel & light 5.25% + furniture 3.42% + tobacco 1.42% + liquor/sickness/amusements 14.51% + misc 5.87%
1970s
housing: housing 26.0%
apparel: apparel 6.4%
food: food 17.1%
health: healthcare 5.3%
transport: transportation 17.6%
other: insurance/pensions 8.7% + entertainment 7.8% + cash contributions 3.7% + education 1.5%
1980s
housing: housing 29.5%
apparel: apparel 6.0%
food: food 15.0%
health: healthcare 4.1%
transport: transportation 20.6%
other: insurance/pensions 9.8% + entertainment 5.3% + cash contributions 2.6% + education 1.5%
1990s
housing: housing 31.3%
apparel: apparel 5.7%
food: food 15.0%
health: healthcare 4.3%
transport: transportation 18.7%
other: insurance/pensions 10.1% + entertainment 6.0% + cash contributions 2.1% + education 1.8%
2000s
housing: housing 32.3%
apparel: apparel 4.6%
food: food 13.9%
health: healthcare 4.5%
transport: transportation 18.6%
other: insurance/pensions 12.1% + entertainment 5.1% + cash contributions 2.6% + education 2.4%
2010s
housing: housing 33.0%
apparel: apparel 3.6%
food: food 14.0%
health: healthcare 5.8%
transport: transportation 18.3%
other: insurance/pensions 11.6% + entertainment 5.1% + cash contributions 2.6% + education 2.4%
Unpaid home production, women and menhours per week, prime-age adults (Ramey series) 10 of 13 rooms charted
⚠ From 2010s onward the source is ATUS (all adults 15+, hrs/day, narrower 'household activities'), not Ramey (prime-age women 18-64, hrs/week, broader 'home production') — a concept splice. ATUS facts remain available in their rooms, but render as linked gaps on this weekly axis rather than as a false decline.
WomenMenhours per week, prime-age adults (Ramey series)025501900sWomen's weekly unpaid home-production hours, 1900: 46.8 — Tier C46.8CMen's weekly unpaid home-production hours, 1900: 3.9 — Tier C3.9C1910sWomen's weekly unpaid home-production hours, 1910: 45.6 — Tier CCMen's weekly unpaid home-production hours, 1910: 4.0 — Tier CC1920sWomen's weekly unpaid home-production hours, 1920: 44.5 — Tier CCMen's weekly unpaid home-production hours, 1920: 3.9 — Tier CC1930sWomen's weekly unpaid home-production hours, 1930: 43.2 — Tier CCMen's weekly unpaid home-production hours, 1930: 6.0 — Tier CC1940sWomen's weekly unpaid home-production hours, 1940: 41.9 — Tier CCMen's weekly unpaid home-production hours, 1940: 7.7 — Tier CC1950sWomen's weekly unpaid home-production hours, 1950: 41.5 — Tier CCMen's weekly unpaid home-production hours, 1950: 9.0 — Tier CC1960sWomen's weekly unpaid home-production hours, 1965: 40.9 — Tier CCMen's weekly unpaid home-production hours, 1965: 11.2 — Tier CC1970sWomen's weekly unpaid home-production hours, 1975: 32.1 — Tier CCMen's weekly unpaid home-production hours, 1975: 12.1 — Tier CC1980sWomen's weekly unpaid home-production hours, 1985: 28.4 — Tier CCMen's weekly unpaid home-production hours, 1985: 13.9 — Tier CC1990sWomen's weekly unpaid home-production hours, 1990s: not comparable on this axis; no reliable record accessible onlineDMen's weekly unpaid home-production hours, 1990s: not comparable on this axis; no reliable record accessible onlineD2000sWomen's weekly unpaid home-production hours, 2005: 29.3 — Tier CCMen's weekly unpaid home-production hours, 2005: 16.8 — Tier CC2010sWomen's household-activity hours, 2010 (ATUS): not comparable on this axis; 2.14 hrs/dayAMen's household-activity hours, 2010 (ATUS): not comparable on this axis; 1.42 hrs/dayA2020sHome-production hours: Ramey endpoint vs ATUS (concept splice): not comparable on this axis; Ramey 2005: women 29.3, men 16.8 hrs/week (ages 18–64) → ATUS 2024: household activities 2.01 hrs/day, all adults 15+CHome-production hours: Ramey endpoint vs ATUS (concept splice): not comparable on this axis; Ramey 2005: women 29.3, men 16.8 hrs/week (ages 18–64) → ATUS 2024: household activities 2.01 hrs/day, all adults 15+C
Weekly hours, manufacturinghours per week, production workers 3 of 13 rooms charted
Food's share of spending% of household expenditure 8 of 13 rooms charted
⚠ Populations differ across the century — 1901 wage-earner families vs modern consumer units; every placard names who was measured.
⚠ The 1950s point is the nearest available survey (CEX 1960–61), stated plainly rather than back-cast.
02550% of household expenditureno data1900sFood as share of family expenditure, 1901: 42.54% — Tier A42.54A1950sFood basket and expenditure breakdown, 1960-61 (CEX): Food $1,309/yr (24.3% of expenditure), housing $1,594 (29.6%), food away from home $274, local telephone $69/yr. Total expenditure: $5,393. — Tier A24.3A1960sFood expenditure and basket, 1960-61: Food $1,309/yr (24.3% of expenditure). Food away from home $274 (20.9% of food). Local telephone $69/yr. — Tier A24.3A1970sFood basket and expenditure breakdown, 1972-73 (CEX): Food $2,089/yr (17.1% of expenditure). Food at home $1,543 (74% of food), food away from home $546 (26%). Key items: beef $242, bakery $139, fresh milk $130, pork $134, poultry $69, other meats $61, fish $40, eggs $37, cereals $46. Total expenditure: $12,226. — Tier A17.1A1980sFood basket and expenditure breakdown, 1985 (CEX): Food $4,706/yr (15.0% of expenditure). Food at home $2,900 (62% of food), food away from home $1,806 (38%). Key items: meats/poultry/fish/eggs $832, cereals/bakery $410, dairy $404, fruits/vegetables $425, beef $290, fresh milk $202. Total expenditure: $31,408. — Tier A15A1990sFood basket and expenditure breakdown, 1996 (CEX): Food $6,535/yr (15.0% of expenditure). Food at home $4,046 (62% of food), food away from home $2,489 (38%). Key items: meats/poultry/fish/eggs $1,064, cereals/bakery $658, fruits/vegetables $638, dairy $448, beef $319. Total expenditure: $43,670. — Tier A15A2000sFood basket and expenditure breakdown, 2005 (CEX): Food $8,622/yr (13.9% of expenditure). Food at home $4,846 (56% of food), food away from home $3,776 (44%). Key items: meats/poultry/fish/eggs $1,140, fruits/vegetables $780, cereals/bakery $666, dairy $556, beef $344. Total expenditure: $62,215. — Tier A13.9A2010sFood basket and expenditure breakdown, 2013 (CEX): Food $9,588/yr (14.0% of expenditure). Food at home $5,794 (60% of food), food away from home $3,794 (40%). Key items: meats/poultry/fish/eggs $1,237, fruits/vegetables $1,066, cereals/bakery $822, dairy $615, beef $318. Total expenditure: $68,299. — Tier A14A2020sFood expenditure share, four-person consumer units, 2024: no reliable record verified for this comparison — see the placardgap
Apparel's share of spending% of total expenditures 6 of 13 rooms charted
Expenditure-to-income ratio% (total expenditures ÷ income before taxes, all CUs) 5 of 13 rooms charted
⚠ The aggregate ratio hides inequality — the bottom quintile spent 221.8% of income in 2012 (see us-2010s-cex-quintile-q1-ratio). The falling aggregate reflects high-income households pulling the ratio down, not broad-based affordability improvement.
Healthcare cost transformation: spending rose, direct payment fell% (share of GDP / share of NHE) 7 of 13 rooms charted
⚠ Two complementary halves of one story: national healthcare spending rose from 5% to 18% of GDP while the out-of-pocket share fell from 47% to 10.5%. Insurance and public programs shifted costs from direct payment to third-party payment.
Healthcare share of household budget% of total expenditures (CEX, consumer units) 5 of 13 rooms charted
Consumer Price IndexCPI-U level, 1982–84 = 100 112 annual observations

Plate V · 7 exhibits

The past was a different country

What changed in consumption, risk, and the food supply?

These US records describe different populations: adults, workers, road users, and the national food supply. They show changes in particular measures, not the biography of one family. A consumption rate does not establish what everyone did; a legal restriction does not measure how common a practice was. Where a line starts or stops, the source card explains the boundary of the record.

Cigarettes consumed per adultcigarettes per adult (18+) per year 95 annual observations
Adults who smoke% of adults (18+) who currently smoke 27 annual observations
⚠ NHIS survey years only; the survey begins 1965, so earlier decades render as gaps, not zeros. Each marker sits at its fact's own year. The decade placards come from the American Lung Association compilation of the same survey, which agrees with this table at every overlapping year except 2006 (20.8 here, 20.6 there); the 2000 marker is that compilation's value on a year this table leaves blank.
Alcohol consumed per persongallons of pure ethanol per person per year 90 annual observations
⚠ Apparent consumption: legal beverage sales and shipments divided by population. The source table prints '(Prohibition)' instead of values for 1920-1933. That gap is not zero consumption or proof that no alcohol was sold; it is not interpolated and no estimate is substituted for it.
⚠ Not falling, on purpose. The line is a discontinuity, not a trend: the 1911-1915 level is not reached again until the 1970s, and the modern peak (2.76 in 1981) sits above every year since.
⚠ The 1900s and 1910s cards carry five-year ranges rather than single years, because that is how the table publishes the pre-1934 record; the annual series therefore begins at 1934.
⚠ The denominator changes at 1970, from population aged 15 and over to aged 14 and over. It is disclosed, not corrected for.
⚠ The table's own note records that data before 1977 are from Hyman et al. 1980 — the early half of this official series is republished scholarly work.
Road deaths per 100 million vehicle-milesdeaths per 100 million vehicle-miles travelled 124 annual observations
⚠ A rate, not a count. Absolute road deaths peaked at 55,600 in 1972 and were still near 41,000 in 2023; what fell by a factor of thirty is the aggregate death rate per mile travelled. It does not measure an individual traveller's risk.
⚠ FHWA's own footnote records a definitional change: from 1976 the count includes only people who died within 30 days of the crash. Earlier years were counted on a wider window, so the two halves of this line are not quite the same measurement.
⚠ The 1900 figure rests on 36 recorded deaths against an estimated 100 million vehicle-miles. It is published, not reconstructed, but the exposure behind it is very thin and the travel figure is a back-cast.
02550deaths per 100 million vehicle-miles travelled191019201930194019501960197019801990200020102020Road deaths per 100 million vehicle-miles, 1900: 36.00 deaths per 100 million vehicle-miles travelled — Tier A36ARoad deaths per 100 million vehicle-miles, 1910: 44.66 deaths per 100 million vehicle-miles travelled — Tier A44.66ARoad deaths per 100 million vehicle-miles, 1920: 25.54 deaths per 100 million vehicle-miles travelled — Tier A25.54ARoad deaths per 100 million vehicle-miles, 1930: 15.12 deaths per 100 million vehicle-miles travelled — Tier A15.12ARoad deaths per 100 million vehicle-miles, 1940: 10.89 deaths per 100 million vehicle-miles travelled — Tier A10.89ARoad deaths per 100 million vehicle-miles, 1950: 7.24 deaths per 100 million vehicle-miles travelled — Tier A7.24ARoad deaths per 100 million vehicle-miles, 1960: 5.06 deaths per 100 million vehicle-miles travelled — Tier A5.06ARoad deaths per 100 million vehicle-miles, 1970: 4.85 deaths per 100 million vehicle-miles travelled — Tier A4.85ARoad deaths per 100 million vehicle-miles, 1980: 3.35 deaths per 100 million vehicle-miles travelled — Tier A3.35ARoad deaths per 100 million vehicle-miles, 1990: 2.08 deaths per 100 million vehicle-miles travelled — Tier A2.08ARoad deaths per 100 million vehicle-miles, 2000: 1.53 deaths per 100 million vehicle-miles travelled — Tier A1.53ARoad deaths per 100 million vehicle-miles, 2010: 1.11 deaths per 100 million vehicle-miles travelled — Tier A1.11ARoad deaths per 100 million vehicle-miles, 2020: 1.34 deaths per 100 million vehicle-miles travelled — Tier A1.34A
Deaths at work per 100,000 workersfatal work injuries per 100,000 full-time-equivalent workers 19 annual observations
⚠ The federal Census of Fatal Occupational Injuries began in 1992. Earlier estimates and other records exist, but this collection does not join them to the CFOI series.
⚠ Between 2006 and 2024 the displayed rate ranges from 3.3 to 4.2. It is not marked as a steadily falling arc; no statistical trend test is implied by that presentation choice.
⚠ The 1992-2005 rates CFOI did publish were computed against employment rather than hours worked. BLS replaced that basis in 2006, so those years measure something else and are not chained on; the 1990s slot is a gap, not a zero.
Births per 1,000 women aged 15-19live births per 1,000 women aged 15-19 14 annual observations
⚠ Not marked falling, because it does not only fall. The highest point in this selected-year table is 1960; that is not a claim about the annual historical peak. The selected points rise again between 1980 and 1990 before declining.
⚠ A rate over every woman aged 15 to 19, not over those who were sexually active. This age-specific rate does not establish marital status, sexual activity, or social approval.
⚠ The series is what NCHS prints: selected years, not annual, so the line connects published rows and the true peak between them is not shown. It begins in 1950 because the published table does; the museum's earlier rooms carry no card rather than an invented one.
Four foods in the national supplypounds available per person per year (farm weight) 7 of 13 rooms charted
⚠ Availability, not intake. These are disappearance estimates — production plus imports, less exports and non-food use, over population — so they say what the food supply made available, not what anyone ate. ERS publishes a separate loss-adjusted series for consumption-like figures and this is not it.
⚠ Farm weight, as ERS publishes it. Each sheet also prints a retail-weight column derived by a conversion factor; the factor is disclosed rather than applied.
⚠ The lines start where their sheets start, not where the commodity did: broccoli and bell peppers at 1960, avocados and grapes at 1970. Avocados end at 2017 and the others run later, because that is how far each published series reaches.
⚠ The shape is not a smooth rise. Avocados swing year to year through the 1980s — 2.37 pounds in 1986, 1.08 in 1989 — and broccoli is lower in 2022 than it was in 2000. An arc of steady progress would be the wrong picture even here.
BroccoliBell peppersAvocadosGrapespounds available per person per year (farm weight)07.5151960sBroccoli available per person, 1960: 0.4 pounds per person per year — Tier A0.4ABell peppers available per person, 1960: 2.08 pounds per person per year — Tier A2.08A1970sBroccoli available per person, 1970: 0.53 pounds per person per year — Tier AABell peppers available per person, 1970: 2.16 pounds per person per year — Tier AAAvocados available per person, 1970: 0.45 pounds per person per year — Tier AAGrapes available per person, 1970: 2.92 pounds per person per year — Tier AA1980sBroccoli available per person, 1980: 1.4 pounds per person per year — Tier AABell peppers available per person, 1980: 2.89 pounds per person per year — Tier AAAvocados available per person, 1980: 2.1 pounds per person per year — Tier AAGrapes available per person, 1980: 4.01 pounds per person per year — Tier AA1990sBroccoli available per person, 1990: 3.37 pounds per person per year — Tier AABell peppers available per person, 1990: 5.88 pounds per person per year — Tier AAAvocados available per person, 1990: 1.42 pounds per person per year — Tier AAGrapes available per person, 1990: 7.91 pounds per person per year — Tier AA2000sBroccoli available per person, 2000: 5.89 pounds per person per year — Tier AABell peppers available per person, 2000: 8.19 pounds per person per year — Tier AAAvocados available per person, 2000: 2.26 pounds per person per year — Tier AAGrapes available per person, 2000: 7.52 pounds per person per year — Tier AA2010sBroccoli available per person, 2010: 5.95 pounds per person per year — Tier AABell peppers available per person, 2010: 10.33 pounds per person per year — Tier AAAvocados available per person, 2010: 4.03 pounds per person per year — Tier AAGrapes available per person, 2010: 7.98 pounds per person per year — Tier AA2020sBroccoli available per person, 2020: 5.86 pounds per person per year — Tier A5.86ABell peppers available per person, 2020: 10.73 pounds per person per year — Tier A10.73AGrapes available per person, 2020: 8.22 pounds per person per year — Tier A8.22A

The study table

Put two decades on the same table

The atlas follows one measure through time. Pairwise pages instead gather every fact family the measure guard certifies comparable between two chosen rooms.

Open all 78 decade pairs
00s10s20s30s40s50s60s70s80s90s00s10s20s
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Confidence & flags

A — official statistical series
B — official microdata, computed by this project
C — reconstructed from period surveys
D — scholarly estimate
Gap — no reliable record; shown as the gap it is

Reading the atlas

Provenance is in the scan-line: every exhibit's row names its value, confidence tier, the population actually measured, and the source record. Chart points and stage glyphs open the same record.

Rising series draw in petrol, falling in ember. An omitted illustration means no exhibit was selected, not that the object was historically absent.