Source: Based on United Nations, Department of Economic and Social Affairs, Population Division: World Population to 2300. New York, 2004. © United Nations.
http://www.es.flinders.edu.au/~matto...pulation1.html
Figure 3: World population, 1900 CE to 2300 CE. (Lighter colored area is projected, darker color is actual data)
data from United Nations 2004 and Livi-Bacci 1992
http://debitage.net/humangeography/population.html