Year	Total
1800	5.53
1801	5.53
1802	5.53
1803	5.53
1804	5.53
1805	5.53
1806	5.53
1807	5.53
1808	5.53
1809	5.53
1810	5.53
1811	5.53
1812	5.53
1813	5.53
1814	5.53
1815	5.53
1816	5.53
1817	5.53
1818	5.53
1819	5.53
1820	5.53
1821	5.53
1822	5.53
1823	5.53
1824	5.53
1825	5.53
1826	5.53
1827	5.53
1828	5.53
1829	5.53
1830	5.53
1831	5.53
1832	5.53
1833	5.53
1834	5.53
1835	5.53
1836	5.53
1837	5.53
1838	5.53
1839	5.53
1840	5.53
1841	5.53
1842	5.53
1843	5.53
1844	5.53
1845	5.53
1846	5.53
1847	5.53
1848	5.53
1849	5.53
1850	5.53
1851	5.53
1852	5.53
1853	5.53
1854	5.53
1855	5.53
1856	5.53
1857	5.53
1858	5.53
1859	5.53
1860	5.53
1861	5.53
1862	5.53
1863	5.53
1864	5.53
1865	5.53
1866	5.53
1867	5.53
1868	5.53
1869	5.53
1870	5.53
1871	5.53
1872	5.53
1873	5.53
1874	5.53
1875	5.53
1876	5.53
1877	5.53
1878	5.53
1879	5.53
1880	5.53
1881	5.53
1882	5.53
1883	5.53
1884	5.53
1885	5.53
1886	5.53
1887	5.53
1888	5.53
1889	5.53
1890	5.53
1891	5.53
1892	5.53
1893	5.53
1894	5.53
1895	5.53
1896	5.53
1897	5.53
1898	5.53
1899	5.53
1900	5.53
1901	5.53
1902	5.53
1903	5.53
1904	5.53
1905	5.53
1906	5.53
1907	5.53
1908	5.53
1909	5.53
1910	5.53
1911	5.53
1912	5.53
1913	5.53
1914	5.53
1915	5.53
1916	5.53
1917	5.53
1918	5.53
1919	5.53
1920	5.53
1921	5.53
1922	5.53
1923	5.53
1924	5.53
1925	5.53
1926	5.52
1927	5.51
1928	5.51
1929	5.5
1930	5.49
1931	5.48
1932	5.48
1933	5.47
1934	5.46
1935	5.45
1936	5.45
1937	5.44
1938	5.43
1939	5.42
1940	5.41
1941	5.41
1942	5.4
1943	5.39
1944	5.38
1945	5.38
1946	5.37
1947	5.36
1948	5.35
1949	5.35
1950	5.34
1951	5.53
1952	5.89
1953	6.19
1954	6.45
1955	6.65
1956	6.8
1957	6.9
1958	6.96
1959	6.98
1960	6.97
1961	6.93
1962	6.88
1963	6.82
1964	6.76
1965	6.69
1966	6.61
1967	6.51
1968	6.39
1969	6.25
1970	6.1
1971	5.95
1972	5.81
1973	5.69
1974	5.57
1975	5.46
1976	5.35
1977	5.22
1978	5.06
1979	4.89
1980	4.7
1981	4.51
1982	4.33
1983	4.16
1984	4.01
1985	3.89
1986	3.78
1987	3.68
1988	3.59
1989	3.5
1990	3.4
1991	3.3
1992	3.2
1993	3.1
1994	3
1995	2.89
1996	2.77
1997	2.64
1998	2.5
1999	2.35
2000	2.2
2001	2.06
2002	1.93
2003	1.83
2004	1.74
2005	1.68
2006	1.63
2007	1.6
2008	1.57
2009	1.56
2010	1.54
2011	1.52
2012	1.51
2013	1.5
2014	1.48
2015	1.47
2016	1.46
2017	1.45
2018	1.44