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Use of interpolation and extrapolation on Maddison GDP per capita data,
1820

In order to produce global estimates of historical poverty trends we have interpolated or extrapolated GDP per capita data formissing observations. Green indicates GDP observations available in the original source.

Baseline Gini series (GCIP income and van Zanden et al. (2014))0.350.40.450.50.550.6GDP per capita (2011 int-$)$2,000BrazilBrazilChinaChinaFranceFranceIndiaIndiaIranIranJapanJapanMexicoMexicoPortugalPortugalSouth KoreaSouth KoreaSpainSpainExtrapolated using Prados de laEcosura (2012)Maddison - extrapolated usingaggregate bloc growth rateMaddison - extrapolated usingaverage regional growth rateMaddison - interpolatedMaddison - original350M350MCircles sized byPopulation (historical)

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