Free sample. This preview shows 1 of 2 indicator(s) and 3 of 20 economies, and omits the share, trend, momentum and full year-by-year sections. The complete report is at GET /report/macro-population-growth for a small USDC payment over x402, as HTML, JSON or CSV. A free machine-readable cross-section is at GET /preview/macro-population-growth.

Population Growth Report — free sample

Generated: 2026-09-21T08:16:02.423Z  |  Range: 2015–2025  |  Source: World Bank Open Data (CC BY 4.0)

Key findings

This report covers 3 economies and 1 indicator over 2015–2025, containing 33 published observations (100% of the 33 requested year × economy cells). Every figure is reproduced from World Bank Open Data and recomputed into growth, share, trend-fit, momentum, volatility, concentration and data-quality views. Values are also available as JSON and CSV from the same endpoint.
IndicatorRank 1Latest valueCAGR / period avg TrendEconomiesLatest yr
Population growth (annual %)United States0.522 0.62%-0.01 pp32025

Population growth (annual %)

Latest reading is highest in United States at 0.52% and lowest in Japan at -0.49%. Period average is 0.19%, with a cross-economy spread of 1.01 percentage points. This is a rate of change rather than a level, so compound growth and a growth index are not defined for it; the trend is reported in percentage points per year. Fitted trend is steepest upward in United States (-0.01 pp/yr, percentage points per year, R² 0.008) and weakest in China (-0.09 pp/yr, R² 0.958). Largest acceleration — last three years against the three before — is Japan at +50.0% percentage points. 3 economies covered; latest observation year 2025.

Latest reading, by economy

United States 0.522 China -0.170 Japan -0.492

Ranked detail

Group average over the period: 0.19%. Cross-economy spread of the latest reading: 1.01 percentage points. A rate of change has no compound growth rate, so none is reported.
#EconomyLatest Period avgTrend pp/yr PctileTrend
1 United States 0.522 0.620-0.01 100
2 China -0.170 0.227-0.09 67
3 Japan -0.492 -0.284-0.05 33
Period average is the mean of the annual readings across the covered years. Trend pp/yr is the ordinary-least-squares slope in percentage points per year — the unit this indicator is already measured in. Percentile ranks this economy within the covered group.

Trend and dynamics

EconomyTrend pp/yrTrend R² MomentumHalf-period shiftVolatility Latest YoYPeak / trough yrOutlier years
United States -0.01 0.01 -54.7% +55.5% 91.5 -45.6% 2024 / 2021 2022 (+262%)
China -0.09 0.96 -179.6% -170.1% 210.8 -38.0% 2017 / 2025 2023 (-692%)
Japan -0.05 0.86 +50.0% +23.7% 45.7 -13.0% 2016 / 2025 —
Trend is the ordinary-least-squares fit of value on year, reported with its R² — how much of the movement the straight line explains, in percentage points per year because this series is already a rate. Momentum is the mean change of the last three years minus the mean of the three before it, in percentage points. Half-period shift compares the second half of the window against the first. Volatility is the standard deviation of year-over-year change. Outlier years exceed 2.5 standard deviations from that economy's own average change.

Data quality

EconomyPublishedExpectedCoverage SpanYears behind newestMissing years
United States 11 11 100% 2015–2025 0 —
China 11 11 100% 2015–2025 0 —
Japan 11 11 100% 2015–2025 0 —

Full year-by-year data

Economy20152016201720182019202020212022202320242025
United States0.7980.7860.6930.5860.5150.4090.1570.5690.8230.9600.522
China0.5810.5730.6050.4680.3550.2380.089-0.013-0.104-0.123-0.170
Japan-0.106-0.051-0.082-0.127-0.140-0.294-0.460-0.444-0.487-0.436-0.492
MethodologySeries are pulled from the official source API and null observations dropped. CAGR = (end/start)^(1/years) − 1. Index uses the first year of the range as 100. Trend is an OLS fit of value on year, reported as a percentage of the period mean alongside its R². Volatility = standard deviation of year-over-year percentage change (percentage points). Momentum compares the last three years against the three before. Share = economy value ÷ sum of the covered economies. HHI = sum of squared shares; its reciprocal estimates the number of evenly sized economies. Cross-indicator correlation is Pearson's r on pooled year-over-year changes.
CoverageRequested: 1 indicator(s) × 3 economies × 11 years = 33 cells; published: 33 (100.0%). Sparse indicators are declared in the Data quality section of each indicator.
FormatsThis document is the HTML delivery. Append ?format=json for the full structured payload (series plus every derived metric) or ?format=csv for the tidy long-format panel. The JSON schema is published at /schema/report.json.
LicenceData © World Bank Open Data (CC BY 4.0), attribution required. Generated by an automated pipeline; research reference only, not investment advice.
DisclaimerValues are reproduced as published by the source; some years may be estimates, nowcasts or subsequently revised figures. Correlations are descriptive statistics, not causal claims.