http://en.wikipedia.org/wiki/List_of_countries_by_past_GDP_(PPP)
1st century
Region / Country GDP (PPP)
mill. of International dollars GDP Share
percentage (%)
World 102 536 100
India 33 750 [6] 32.9
Han China 26 820 26.2
Roman Empire 22 000 [7] 21.5
1000
Region / Country GDP (PPP)
mill. of International dollars GDP Share
percentage (%)
World 116 790 100
India 33 750 [6] 28.9
Song China 26 550 22.7
Islamic Caliphate 21 640 [10] 18.5
1500
Region / Country GDP (PPP)
mill. of International dollars GDP Share
percentage (%)
World 247 116 100
Ming China 61 800 25.0
India 60 500 [6] 24.5
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