Year	Total
1800	4.6
1801	4.6
1802	4.6
1803	4.6
1804	4.6
1805	4.6
1806	4.6
1807	4.6
1808	4.6
1809	4.6
1810	4.6
1811	4.6
1812	4.6
1813	4.6
1814	4.6
1815	4.6
1816	4.6
1817	4.6
1818	4.6
1819	4.6
1820	4.6
1821	4.6
1822	4.6
1823	4.6
1824	4.6
1825	4.6
1826	4.6
1827	4.6
1828	4.6
1829	4.6
1830	4.6
1831	4.6
1832	4.6
1833	4.6
1834	4.6
1835	4.6
1836	4.6
1837	4.6
1838	4.6
1839	4.6
1840	4.6
1841	4.6
1842	4.6
1843	4.6
1844	4.6
1845	4.6
1846	4.6
1847	4.6
1848	4.6
1849	4.6
1850	4.6
1851	4.6
1852	4.6
1853	4.6
1854	4.6
1855	4.6
1856	4.6
1857	4.6
1858	4.6
1859	4.6
1860	4.6
1861	4.6
1862	4.6
1863	4.6
1864	4.6
1865	4.6
1866	4.6
1867	4.6
1868	4.6
1869	4.6
1870	4.6
1871	4.6
1872	4.6
1873	4.6
1874	4.6
1875	4.6
1876	4.6
1877	4.6
1878	4.6
1879	4.6
1880	4.6
1881	4.6
1882	4.6
1883	4.6
1884	4.6
1885	4.6
1886	4.6
1887	4.6
1888	4.6
1889	4.6
1890	4.6
1891	4.6
1892	4.6
1893	4.6
1894	4.6
1895	4.6
1896	4.6
1897	4.6
1898	4.6
1899	4.6
1900	4.6
1901	4.6
1902	4.6
1903	4.6
1904	4.6
1905	4.6
1906	4.6
1907	4.6
1908	4.6
1909	4.6
1910	4.6
1911	4.6
1912	4.6
1913	4.6
1914	4.6
1915	4.6
1916	4.6
1917	4.6
1918	4.6
1919	4.6
1920	4.6
1921	4.6
1922	4.6
1923	4.6
1924	4.6
1925	4.6
1926	4.423
1927	4.247
1928	4.07
1929	3.893
1930	3.717
1931	3.54
1932	3.363
1933	3.569
1934	3.774
1935	3.98
1936	4.185
1937	4.391
1938	4.596
1939	3.739
1940	4.194
1941	3.752
1942	4.409
1943	4.582
1944	4.756
1945	4.93
1946	5.104
1947	5.278
1948	5.451
1949	5.625
1950	5.799
1951	5.896
1952	6.071
1953	6.209
1954	6.309
1955	6.372
1956	6.398
1957	6.389
1958	6.348
1959	6.278
1960	6.186
1961	6.076
1962	5.956
1963	5.833
1964	5.711
1965	5.594
1966	5.483
1967	5.376
1968	5.268
1969	5.16
1970	5.05
1971	4.933
1972	4.809
1973	4.677
1974	4.538
1975	4.393
1976	4.244
1977	4.094
1978	3.947
1979	3.807
1980	3.678
1981	3.562
1982	3.46
1983	3.372
1984	3.297
1985	3.233
1986	3.177
1987	3.126
1988	3.075
1989	3.023
1990	2.97
1991	2.917
1992	2.867
1993	2.819
1994	2.772
1995	2.723
1996	2.67
1997	2.611
1998	2.543
1999	2.467
2000	2.383
2001	2.291
2002	2.195
2003	2.097
2004	2.004
2005	1.919
2006	1.849
2007	1.796
2008	1.761
2009	1.744
2010	1.741
2011	1.748
2012	1.76
2013	1.771
2014	1.779
2015	1.781
2016	1.779
2017	1.775
2018	1.77
2019	1.766
2020	1.763
2021	1.76
2022	1.757
2023	1.754
2024	1.752
2030	1.742
2040	1.74
2050	1.75
2070	1.789
2080	1.809
2099	1.841