Year	Total
1800	5.71
1801	5.71
1802	5.71
1803	5.71
1804	5.71
1805	5.71
1806	5.71
1807	5.71
1808	5.71
1809	5.71
1810	5.71
1811	5.71
1812	5.71
1813	5.71
1814	5.71
1815	5.71
1816	5.71
1817	5.71
1818	5.71
1819	5.71
1820	5.71
1821	5.71
1822	5.71
1823	5.71
1824	5.71
1825	5.71
1826	5.71
1827	5.71
1828	5.71
1829	5.71
1830	5.71
1831	5.71
1832	5.71
1833	5.71
1834	5.71
1835	5.71
1836	5.71
1837	5.71
1838	5.71
1839	5.71
1840	5.71
1841	5.71
1842	5.71
1843	5.71
1844	5.71
1845	5.71
1846	5.71
1847	5.71
1848	5.71
1849	5.71
1850	5.71
1851	5.71
1852	5.71
1853	5.71
1854	5.71
1855	5.71
1856	5.71
1857	5.71
1858	5.71
1859	5.71
1860	5.71
1861	5.71
1862	5.71
1863	5.71
1864	5.71
1865	5.71
1866	5.71
1867	5.71
1868	5.71
1869	5.71
1870	5.71
1871	5.71
1872	5.71
1873	5.71
1874	5.71
1875	5.71
1876	5.71
1877	5.71
1878	5.71
1879	5.71
1880	5.71
1881	5.71
1882	5.71
1883	5.71
1884	5.71
1885	5.71
1886	5.71
1887	5.71
1888	5.71
1889	5.71
1890	5.71
1891	5.71
1892	5.71
1893	5.71
1894	5.71
1895	5.71
1896	5.71
1897	5.71
1898	5.71
1899	5.71
1900	5.71
1901	5.71
1902	5.71
1903	5.71
1904	5.71
1905	5.71
1906	5.71
1907	5.71
1908	5.71
1909	5.71
1910	5.71
1911	5.71
1912	5.71
1913	5.71
1914	5.71
1915	5.71
1916	5.71
1917	5.71
1918	5.71
1919	5.71
1920	5.71
1921	5.71
1922	5.71
1923	5.71
1924	5.71
1925	5.71
1926	5.71
1927	5.71
1928	5.71
1929	5.71
1930	5.71
1931	5.71
1932	5.71
1933	5.7
1934	5.7
1935	5.69
1936	5.69
1937	5.68
1938	5.67
1939	5.66
1940	5.64
1941	5.63
1942	5.61
1943	5.59
1944	5.58
1945	5.56
1946	5.53
1947	5.51
1948	5.49
1949	5.46
1950	5.43
1951	5.46
1952	5.55
1953	5.63
1954	5.72
1955	5.8
1956	5.89
1957	5.98
1958	6.07
1959	6.17
1960	6.26
1961	6.36
1962	6.44
1963	6.49
1964	6.52
1965	6.52
1966	6.5
1967	6.46
1968	6.42
1969	6.38
1970	6.33
1971	6.26
1972	6.19
1973	6.09
1974	5.97
1975	5.84
1976	5.7
1977	5.55
1978	5.4
1979	5.25
1980	5.11
1981	4.98
1982	4.87
1983	4.76
1984	4.67
1985	4.59
1986	4.51
1987	4.44
1988	4.37
1989	4.29
1990	4.21
1991	4.11
1992	3.99
1993	3.85
1994	3.7
1995	3.53
1996	3.36
1997	3.19
1998	3.03
1999	2.87
2000	2.74
2001	2.64
2002	2.56
2003	2.51
2004	2.48
2005	2.46
2006	2.46
2007	2.46
2008	2.46
2009	2.46
2010	2.44
2011	2.42
2012	2.4
2013	2.37
2014	2.34
2015	2.31
2016	2.29
2017	2.26
2018	2.23