population
(millions) 1800-1950 |
lower estimate |
upper estimate |
1800 | 813 | 1125 |
1850 | 1128 | 1402 |
1900 | 1550 | 1762 |
1910 | 1750 | |
1920 | 1860 | |
1930 | 2070 | |
1940 | 2300 | |
1950 | 2400 | 2556 |
growth factor 1800-1950 |
2.95 | 2.27 |
average
compound annual rate of growth |
0.724% | 0.549% |
years to double | 96 | 127 |
double | 2 | 2 |