Income distribution data: From Christian Morrisson and Wayne Snyder (2000). The “high income” variant for income of nobles and clergy and bourgeoisie assumed.
Population and area: Population (27.97 million) obtained directly from Morrisson and Snyder data. The current area of France assumed.
Urbanization rate: From Bairoch (1985, p. 279). The average of the estimated 11-13 percent, for the year 1800, and based on cities with more than 5,000 inhabitants.
Mean income in PPP: GDP from Maddison (2007), for year 1820 (the first year for which the data for France are available) is $1134.
Bairoch, Paul (1985), De Jėricho à Mexico: villes et economies dans l’histoire, Paris: Arcades, Gallimard.
Maddison, Angus (2001), The World Economy: A Millennial Perspectives, Paris: OECD Development Centre.
Morrisson, Christian and Wayne Snyder (2000), “The income inequality of France in historical perspective”, European Review of Economic History, 4: 59-83.