Year	Total
1800	6.31
1801	6.31
1802	6.31
1803	6.31
1804	6.31
1805	6.31
1806	6.31
1807	6.31
1808	6.31
1809	6.31
1810	6.31
1811	6.31
1812	6.31
1813	6.31
1814	6.31
1815	6.31
1816	6.31
1817	6.31
1818	6.31
1819	6.31
1820	6.31
1821	6.31
1822	6.31
1823	6.31
1824	6.31
1825	6.31
1826	6.31
1827	6.31
1828	6.31
1829	6.31
1830	6.31
1831	6.31
1832	6.31
1833	6.31
1834	6.31
1835	6.31
1836	6.31
1837	6.31
1838	6.31
1839	6.31
1840	6.31
1841	6.31
1842	6.31
1843	6.31
1844	6.31
1845	6.31
1846	6.31
1847	6.31
1848	6.31
1849	6.31
1850	6.31
1851	6.31
1852	6.31
1853	6.31
1854	6.31
1855	6.31
1856	6.31
1857	6.31
1858	6.31
1859	6.31
1860	6.31
1861	6.31
1862	6.31
1863	6.31
1864	6.31
1865	6.31
1866	6.31
1867	6.31
1868	6.31
1869	6.31
1870	6.31
1871	6.31
1872	6.31
1873	6.31
1874	6.31
1875	6.31
1876	6.31
1877	6.31
1878	6.31
1879	6.31
1880	6.31
1881	6.31
1882	6.31
1883	6.31
1884	6.31
1885	6.31
1886	6.31
1887	6.31
1888	6.31
1889	6.31
1890	6.31
1891	6.31
1892	6.31
1893	6.31
1894	6.31
1895	6.31
1896	6.31
1897	6.31
1898	6.31
1899	6.31
1900	6.31
1901	6.31
1902	6.31
1903	6.31
1904	6.31
1905	6.31
1906	6.31
1907	6.31
1908	6.31
1909	6.31
1910	6.31
1911	6.31
1912	6.31
1913	6.31
1914	6.31
1915	6.31
1916	6.31
1917	6.31
1918	6.31
1919	6.31
1920	6.31
1921	6.31
1922	6.31
1923	6.31
1924	6.31
1925	6.31
1926	6.31
1927	6.31
1928	6.31
1929	6.31
1930	6.31
1931	6.31
1932	6.31
1933	6.31
1934	6.31
1935	6.31
1936	6.31
1937	6.31
1938	6.31
1939	6.31
1940	6.31
1941	6.31
1942	6.31
1943	6.31
1944	6.31
1945	6.31
1946	6.31
1947	6.31
1948	6.31
1949	6.31
1950	6.31
1951	6.31
1952	6.3
1953	6.3
1954	6.3
1955	6.3
1956	6.3
1957	6.31
1958	6.32
1959	6.32
1960	6.32
1961	6.32
1962	6.3
1963	6.27
1964	6.23
1965	6.18
1966	6.11
1967	6.03
1968	5.94
1969	5.85
1970	5.76
1971	5.69
1972	5.64
1973	5.62
1974	5.61
1975	5.64
1976	5.7
1977	5.78
1978	5.87
1979	5.97
1980	6.06
1981	6.12
1982	6.15
1983	6.15
1984	6.11
1985	6.03
1986	5.92
1987	5.8
1988	5.67
1989	5.55
1990	5.43
1991	5.32
1992	5.21
1993	5.1
1994	5
1995	4.89
1996	4.78
1997	4.67
1998	4.55
1999	4.43
2000	4.3
2001	4.18
2002	4.07
2003	3.96
2004	3.85
2005	3.76
2006	3.67
2007	3.58
2008	3.49
2009	3.41
2010	3.33
2011	3.25
2012	3.17
2013	3.1
2014	3.03
2015	2.97
2016	2.92
2017	2.87
2018	2.82