Year	Total
1800	6.35
1801	6.35
1802	6.35
1803	6.35
1804	6.35
1805	6.35
1806	6.35
1807	6.35
1808	6.35
1809	6.35
1810	6.35
1811	6.35
1812	6.35
1813	6.35
1814	6.35
1815	6.35
1816	6.35
1817	6.35
1818	6.35
1819	6.35
1820	6.35
1821	6.35
1822	6.35
1823	6.35
1824	6.35
1825	6.35
1826	6.35
1827	6.35
1828	6.35
1829	6.35
1830	6.35
1831	6.35
1832	6.35
1833	6.35
1834	6.35
1835	6.35
1836	6.35
1837	6.35
1838	6.35
1839	6.35
1840	6.35
1841	6.35
1842	6.35
1843	6.35
1844	6.35
1845	6.35
1846	6.35
1847	6.35
1848	6.35
1849	6.35
1850	6.35
1851	6.35
1852	6.35
1853	6.35
1854	6.35
1855	6.35
1856	6.35
1857	6.35
1858	6.35
1859	6.35
1860	6.35
1861	6.35
1862	6.35
1863	6.35
1864	6.35
1865	6.35
1866	6.35
1867	6.35
1868	6.35
1869	6.35
1870	6.35
1871	6.35
1872	6.35
1873	6.35
1874	6.35
1875	6.35
1876	6.35
1877	6.35
1878	6.35
1879	6.35
1880	6.35
1881	6.35
1882	6.35
1883	6.35
1884	6.35
1885	6.35
1886	6.35
1887	6.35
1888	6.35
1889	6.35
1890	6.35
1891	6.35
1892	6.35
1893	6.35
1894	6.35
1895	6.35
1896	6.35
1897	6.35
1898	6.35
1899	6.35
1900	6.35
1901	6.35
1902	6.35
1903	6.35
1904	6.35
1905	6.35
1906	6.35
1907	6.35
1908	6.35
1909	6.35
1910	6.35
1911	6.35
1912	6.35
1913	6.35
1914	6.35
1915	6.35
1916	6.35
1917	6.35
1918	6.35
1919	6.35
1920	6.35
1921	6.35
1922	6.35
1923	6.35
1924	6.35
1925	6.35
1926	6.34
1927	6.33
1928	6.32
1929	6.32
1930	6.31
1931	6.3
1932	6.29
1933	6.28
1934	6.27
1935	6.26
1936	6.25
1937	6.25
1938	6.24
1939	6.23
1940	6.22
1941	6.21
1942	6.2
1943	6.19
1944	6.18
1945	6.18
1946	6.17
1947	6.16
1948	6.15
1949	6.14
1950	6.13
1951	6.13
1952	6.14
1953	6.14
1954	6.14
1955	6.14
1956	6.14
1957	6.14
1958	6.14
1959	6.14
1960	6.15
1961	6.15
1962	6.16
1963	6.16
1964	6.15
1965	6.13
1966	6.08
1967	6.01
1968	5.9
1969	5.76
1970	5.6
1971	5.4
1972	5.18
1973	4.95
1974	4.72
1975	4.49
1976	4.26
1977	4.03
1978	3.81
1979	3.59
1980	3.39
1981	3.2
1982	3.02
1983	2.86
1984	2.71
1985	2.57
1986	2.45
1987	2.35
1988	2.26
1989	2.18
1990	2.11
1991	2.06
1992	2
1993	1.96
1994	1.91
1995	1.87
1996	1.82
1997	1.78
1998	1.74
1999	1.71
2000	1.67
2001	1.64
2002	1.62
2003	1.6
2004	1.58
2005	1.57
2006	1.56
2007	1.56
2008	1.55
2009	1.55
2010	1.55
2011	1.54
2012	1.53
2013	1.52
2014	1.51
2015	1.5
2016	1.48
2017	1.47
2018	1.45