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.
REFERENCES Bairoch, Paul (1985), De Jėricho à Mexico: villes et economies dans l’histoire, Paris: Arcades, Gallimard.