090°Open data
Open datasets, fully documented — searchable here, and readable by any LLM.
3 datasets
Eurostat
Annual mean age of women at childbirth - the average age of mothers giving birth in the given year - for EU member states, EFTA countries, EU candidate countries and EU/euro-area aggregates. Eurostat dataset demo_find ('Fertility indicators'), filtered to freq=A, indic_de=AGEMOTH ('Mean age of women at childbirth'). Each row is one (year, country). Method: Eurostat compiles the indicator from national vital-statistics registers; it is a period mean over all births in the year, all birth orders combined. Units: years. Caveats: the mean rises with first-birth postponement - pair it with the total-fertility-rate dataset to separate the tempo effect (delayed births) from the quantum effect (fewer births); national breaks in vital-statistics series are flagged in Eurostat metadata; early years are sparse for newer member and candidate countries. Non-EU/EFTA/candidate countries (the UK, Kosovo, Russia, Belarus) are dropped (same licensing rule as the other Eurostat datasets). Coverage: 45 geographic units after the geo rule, 1960 to the present (1,892 observations), annual. Provenance: Eurostat keyless JSON-stat API, free reuse with attribution (Commission Decision 2011/833/EU) - please cite Eurostat. Primary key: (year, country_code). Join keys: country_code (ISO 3166-1 alpha-3), year. Cadence: refreshed yearly; Eurostat updates the demographic indicators in autumn (2026-09-22 vintage covers 1960-2024). Sample use: filter country_code='ITA' to track the postponement of childbearing in Italy over time.
Annual total fertility rate - the mean number of children that would be born alive to a woman during her lifetime if she were to pass through her childbearing years conforming to the age-specific fertility rates of the given year - for EU member states, EFTA countries, EU candidate countries and EU/euro-area aggregates. Eurostat dataset demo_find ('Fertility indicators'), filtered to freq=A, indic_de=TOTFERRT ('Total fertility rate'). Each row is one (year, country). Method: Eurostat compiles the indicator from national vital-statistics registers; the TFR is a period measure, so it describes the fertility behaviour of a synthetic cohort, not any real generation of women. Units: children per woman. Caveats: the replacement level is about 2.1 children per woman in low-mortality populations - values below it signal long-run population decline absent net immigration; national breaks in vital-statistics series (e.g. territorial changes) are flagged in Eurostat metadata; early years are sparse for newer member and candidate countries. Non-EU/EFTA/candidate countries (the UK, Kosovo, Russia, Belarus) are dropped (same licensing rule as the other Eurostat datasets). Coverage: 45 geographic units after the geo rule, 1960 to the present (1,892 observations), annual. Provenance: Eurostat keyless JSON-stat API, free reuse with attribution (Commission Decision 2011/833/EU) - please cite Eurostat. Primary key: (year, country_code). Join keys: country_code (ISO 3166-1 alpha-3), year. Cadence: refreshed yearly; Eurostat updates the demographic indicators in autumn (2026-09-22 vintage covers 1960-2024). Sample use: filter country_code='FRA' to track the French fertility decline over time.
Demographic Transition Signals (derived)
Yearly demographic-structure signals for 200+ economies (1960 ->, keyless World Bank API): 65+ and working-age population shares, urbanization, and fertility, with 10-year changes, OLS trend slopes, 3-sigma anomaly flags vs a trailing 5-year baseline, 5-year linear-extrapolation forecasts, cross-country ranks, old-age dependency ratios, aging-speed gauges, super-aged (>20% 65+) and demographic-dividend flags, urbanization momentum, and below-replacement fertility flags. All rows carry normalized ISO country codes so they join cleanly with other macro data. Raw data: World Bank, World Development Indicators.
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