Year	per person
1800	0.7456
1820	0.7456
1821	0.7487
1822	0.7518
1823	0.7549
1824	0.758
1825	0.7611
1826	0.7642
1827	0.7674
1828	0.7705
1829	0.7737
1830	0.7769
1831	0.7801
1832	0.7833
1833	0.7865
1834	0.7897
1835	0.793
1836	0.7963
1837	0.7995
1838	0.8028
1839	0.8061
1840	0.8095
1841	0.8128
1842	0.8161
1843	0.8195
1844	0.8229
1845	0.8262
1846	0.8296
1847	0.8331
1848	0.8365
1849	0.8399
1850	0.8434
1851	0.8469
1852	0.8503
1853	0.8538
1854	0.8574
1855	0.8609
1856	0.8644
1857	0.868
1858	0.8716
1859	0.8752
1860	0.8788
1861	0.8824
1862	0.886
1863	0.8897
1864	0.8933
1865	0.897
1866	0.9007
1867	0.9044
1868	0.9081
1869	0.9118
1870	0.9156
1871	0.9194
1872	0.9232
1873	0.927
1874	0.9308
1875	0.9346
1876	0.9384
1877	0.9423
1878	0.9462
1879	0.9501
1880	0.954
1881	0.9579
1882	0.9619
1883	0.9658
1884	0.9698
1885	0.9738
1886	0.9778
1887	0.9818
1888	0.9859
1889	0.9899
1890	0.994
1891	0.9981
1892	1.002
1893	1.006
1894	1.01
1895	1.015
1896	1.019
1897	1.023
1898	1.027
1899	1.031
1900	1.036
1901	1.04
1902	1.044
1903	1.049
1904	1.053
1905	1.057
1906	1.062
1907	1.066
1908	1.07
1909	1.075
1910	1.079
1911	1.084
1912	1.088
1913	1.092
1914	1.097
1915	1.101
1916	1.106
1917	1.111
1918	1.115
1919	1.12
1920	1.124
1921	1.129
1922	1.134
1923	1.138
1924	1.143
1925	1.148
1926	1.152
1927	1.157
1928	1.162
1929	1.167
1930	1.171
1931	1.176
1932	1.181
1933	1.186
1934	1.191
1935	1.196
1936	1.201
1937	1.206
1938	1.211
1939	1.216
1940	1.221
1941	1.226
1942	1.231
1943	1.236
1944	1.241
1945	1.246
1946	1.251
1947	1.256
1948	1.261
1949	1.267
1950	1.272
1951	1.288
1952	1.304
1953	1.321
1954	1.302
1955	1.309
1956	1.325
1957	1.28
1958	1.269
1959	1.375
1960	1.435
1961	1.484
1962	1.526
1963	1.563
1964	1.596
1965	1.626
1966	1.654
1967	1.679
1968	1.704
1969	1.727
1970	1.751
1971	1.602
1972	1.516
1973	1.496
1974	1.447
1975	1.484
1976	1.472
1977	1.464
1978	1.602
1979	1.758
1980	2.377
1981	2.556
1982	2.591
1983	2.794
1984	2.854
1985	3.052
1986	3.088
1987	3.248
1988	3.291
1989	3.41
1990	3.482
1993	3.344
1994	3.509
1995	3.729
1996	3.923
1997	4.173
1998	4.427
1999	4.756
2000	5.025
2001	5.278
2002	5.494
2003	5.703
2004	5.905
2005	6.208
2006	6.752
2007	7.181
2008	7.423
2009	7.579