Year	Total
1800	6.71
1801	6.71
1802	6.71
1803	6.71
1804	6.71
1805	6.71
1806	6.71
1807	6.71
1808	6.71
1809	6.71
1810	6.71
1811	6.71
1812	6.71
1813	6.71
1814	6.71
1815	6.71
1816	6.71
1817	6.71
1818	6.71
1819	6.71
1820	6.71
1821	6.71
1822	6.71
1823	6.71
1824	6.71
1825	6.71
1826	6.71
1827	6.71
1828	6.71
1829	6.71
1830	6.71
1831	6.71
1832	6.71
1833	6.71
1834	6.71
1835	6.71
1836	6.71
1837	6.71
1838	6.71
1839	6.71
1840	6.71
1841	6.71
1842	6.71
1843	6.71
1844	6.71
1845	6.71
1846	6.71
1847	6.71
1848	6.71
1849	6.71
1850	6.71
1851	6.71
1852	6.71
1853	6.71
1854	6.71
1855	6.71
1856	6.71
1857	6.71
1858	6.71
1859	6.71
1860	6.71
1861	6.71
1862	6.71
1863	6.71
1864	6.71
1865	6.71
1866	6.71
1867	6.71
1868	6.71
1869	6.71
1870	6.71
1871	6.71
1872	6.71
1873	6.71
1874	6.71
1875	6.71
1876	6.71
1877	6.71
1878	6.71
1879	6.71
1880	6.71
1881	6.71
1882	6.71
1883	6.71
1884	6.71
1885	6.71
1886	6.71
1887	6.71
1888	6.71
1889	6.71
1890	6.71
1891	6.71
1892	6.71
1893	6.71
1894	6.71
1895	6.71
1896	6.71
1897	6.71
1898	6.71
1899	6.71
1900	6.71
1901	6.71
1902	6.71
1903	6.71
1904	6.71
1905	6.71
1906	6.71
1907	6.71
1908	6.71
1909	6.71
1910	6.71
1911	6.71
1912	6.71
1913	6.71
1914	6.71
1915	6.71
1916	6.71
1917	6.71
1918	6.71
1919	6.71
1920	6.71
1921	6.71
1922	6.71
1923	6.71
1924	6.71
1925	6.71
1926	6.71
1927	6.71
1928	6.71
1929	6.71
1930	6.71
1931	6.71
1932	6.71
1933	6.71
1934	6.71
1935	6.71
1936	6.71
1937	6.71
1938	6.71
1939	6.71
1940	6.71
1941	6.71
1942	6.71
1943	6.71
1944	6.71
1945	6.71
1946	6.71
1947	6.71
1948	6.71
1949	6.71
1950	6.71
1951	6.71
1952	6.7
1953	6.7
1954	6.69
1955	6.69
1956	6.69
1957	6.7
1958	6.7
1959	6.71
1960	6.72
1961	6.73
1962	6.75
1963	6.76
1964	6.78
1965	6.8
1966	6.82
1967	6.84
1968	6.86
1969	6.87
1970	6.88
1971	6.88
1972	6.87
1973	6.86
1974	6.84
1975	6.82
1976	6.79
1977	6.76
1978	6.73
1979	6.69
1980	6.65
1981	6.6
1982	6.54
1983	6.47
1984	6.39
1985	6.29
1986	6.19
1987	6.06
1988	5.92
1989	5.78
1990	5.62
1991	5.46
1992	5.29
1993	5.12
1994	4.96
1995	4.8
1996	4.65
1997	4.52
1998	4.39
1999	4.28
2000	4.19
2001	4.11
2002	4.04
2003	3.98
2004	3.93
2005	3.87
2006	3.82
2007	3.76
2008	3.69
2009	3.61
2010	3.53
2011	3.44
2012	3.36
2013	3.28
2014	3.2
2015	3.14
2016	3.08
2017	3.03
2018	2.98