Population history loads from data/gdp-history.json; you author each country's
GDP/cap growth right here in Edit mode. Per-capita history compounds backward
from each country's 2015 anchor. Save with Download gdp-growth.json and commit the file.
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You have unsaved edits (kept in this browser only). Click Download gdp-growth.json below and commit it to make them durable.
Each bubble is a country: x = GDP per capita, y = population, size = total GDP, colour = continent. Both axes are log scale.
Every country sized by total GDP, grouped by continent, coloured by GDP growth (green = growth, red = contraction) — like a stock-market heatmap. Drag the slider or press Play to watch it move.
x = how rich a country was at the window's start (log scale); y = its average yearly per-capita growth since. A downward trend means poorer nations grew faster (β-convergence). The window ends at the selected year — scrub it to animate.
Between-country Gini of GDP per capita each year (0 = every country equal, 1 = maximally unequal). Population weighting counts populous countries more. Rising = divergence, falling = convergence.
Percentage of world population living in countries whose GDP per capita is at least each threshold (per-capita lahn). Rising lines = development lifting people over each line.
% sign or numbers like 3 = 3%; a column of small decimals like 0.03 is auto-read as 3%. Blank cells clear that year.
Pick one or more countries in “Compare with” above to overlay them against the selected country. View mode only — hidden while editing.
Edits autosave to this browser only (localStorage) so they survive a refresh.
The durable source is data/gdp-growth.json — click Download gdp-growth.json, replace the
file in data/, and commit it to deploy.