Year	Total
1800	6.34
1801	6.34
1802	6.34
1803	6.34
1804	6.34
1805	6.34
1806	6.34
1807	6.34
1808	6.34
1809	6.34
1810	6.34
1811	6.34
1812	6.34
1813	6.34
1814	6.34
1815	6.34
1816	6.34
1817	6.34
1818	6.34
1819	6.34
1820	6.34
1821	6.34
1822	6.34
1823	6.34
1824	6.34
1825	6.34
1826	6.34
1827	6.34
1828	6.34
1829	6.34
1830	6.34
1831	6.34
1832	6.34
1833	6.34
1834	6.34
1835	6.34
1836	6.34
1837	6.34
1838	6.34
1839	6.34
1840	6.34
1841	6.34
1842	6.34
1843	6.34
1844	6.34
1845	6.34
1846	6.34
1847	6.34
1848	6.34
1849	6.34
1850	6.34
1851	6.34
1852	6.34
1853	6.34
1854	6.34
1855	6.34
1856	6.34
1857	6.34
1858	6.34
1859	6.34
1860	6.34
1861	6.34
1862	6.34
1863	6.34
1864	6.34
1865	6.34
1866	6.34
1867	6.34
1868	6.34
1869	6.34
1870	6.34
1871	6.34
1872	6.34
1873	6.34
1874	6.34
1875	6.34
1876	6.34
1877	6.34
1878	6.34
1879	6.34
1880	6.34
1881	6.34
1882	6.34
1883	6.34
1884	6.34
1885	6.34
1886	6.34
1887	6.34
1888	6.34
1889	6.34
1890	6.34
1891	6.34
1892	6.34
1893	6.34
1894	6.34
1895	6.34
1896	6.34
1897	6.34
1898	6.34
1899	6.34
1900	6.34
1901	6.34
1902	6.34
1903	6.34
1904	6.34
1905	6.34
1906	6.34
1907	6.34
1908	6.34
1909	6.34
1910	6.34
1911	6.34
1912	6.34
1913	6.34
1914	6.34
1915	6.34
1916	6.34
1917	6.34
1918	6.34
1919	6.34
1920	6.34
1921	6.34
1922	6.34
1923	6.34
1924	6.34
1925	6.34
1926	6.33
1927	6.32
1928	6.31
1929	6.3
1930	6.3
1931	6.29
1932	6.28
1933	6.27
1934	6.26
1935	6.25
1936	6.24
1937	6.23
1938	6.22
1939	6.22
1940	6.21
1941	6.2
1942	6.19
1943	6.18
1944	6.17
1945	6.16
1946	6.15
1947	6.14
1948	6.13
1949	6.13
1950	6.12
1951	6.18
1952	6.3
1953	6.4
1954	6.49
1955	6.57
1956	6.63
1957	6.69
1958	6.73
1959	6.76
1960	6.78
1961	6.79
1962	6.79
1963	6.8
1964	6.8
1965	6.8
1966	6.8
1967	6.8
1968	6.8
1969	6.79
1970	6.78
1971	6.77
1972	6.76
1973	6.74
1974	6.71
1975	6.68
1976	6.64
1977	6.6
1978	6.55
1979	6.5
1980	6.46
1981	6.41
1982	6.37
1983	6.32
1984	6.28
1985	6.24
1986	6.21
1987	6.17
1988	6.13
1989	6.09
1990	6.04
1991	5.99
1992	5.94
1993	5.88
1994	5.83
1995	5.77
1996	5.7
1997	5.64
1998	5.58
1999	5.51
2000	5.45
2001	5.39
2002	5.34
2003	5.28
2004	5.23
2005	5.18
2006	5.14
2007	5.1
2008	5.06
2009	5.02
2010	4.98
2011	4.94
2012	4.9
2013	4.85
2014	4.79
2015	4.74
2016	4.67
2017	4.61
2018	4.55