Year	Total
1800	5.36
1801	5.36
1802	5.36
1803	5.36
1804	5.36
1805	5.36
1806	5.36
1807	5.36
1808	5.36
1809	5.36
1810	5.36
1811	5.36
1812	5.36
1813	5.36
1814	5.36
1815	5.36
1816	5.36
1817	5.36
1818	5.36
1819	5.36
1820	5.36
1821	5.36
1822	5.36
1823	5.36
1824	5.36
1825	5.36
1826	5.36
1827	5.36
1828	5.36
1829	5.36
1830	5.36
1831	5.36
1832	5.36
1833	5.36
1834	5.36
1835	5.36
1836	5.36
1837	5.36
1838	5.36
1839	5.36
1840	5.36
1841	5.36
1842	5.36
1843	5.36
1844	5.36
1845	5.36
1846	5.36
1847	5.36
1848	5.36
1849	5.36
1850	5.36
1851	5.36
1852	5.36
1853	5.36
1854	5.36
1855	5.36
1856	5.36
1857	5.36
1858	5.36
1859	5.36
1860	5.36
1861	5.36
1862	5.36
1863	5.36
1864	5.36
1865	5.36
1866	5.36
1867	5.36
1868	5.36
1869	5.36
1870	5.36
1871	5.36
1872	5.36
1873	5.36
1874	5.36
1875	5.36
1876	5.36
1877	5.36
1878	5.36
1879	5.36
1880	5.36
1881	5.36
1882	5.36
1883	5.36
1884	5.36
1885	5.36
1886	5.36
1887	5.36
1888	5.36
1889	5.36
1890	5.36
1891	5.36
1892	5.36
1893	5.36
1894	5.36
1895	5.36
1896	5.36
1897	5.36
1898	5.36
1899	5.36
1900	5.36
1901	5.38
1902	5.4
1903	5.4
1904	5.39
1905	5.39
1906	5.39
1907	5.39
1908	5.44
1909	5.48
1910	5.53
1911	5.58
1912	5.63
1913	5.5
1914	5.38
1915	5.25
1916	5.12
1917	5
1918	5.07
1919	5.14
1920	5.22
1921	5.29
1922	5.36
1923	5.33
1924	5.31
1925	5.28
1926	5.25
1927	5.23
1928	5.18
1929	5.14
1930	5.1
1931	5.05
1932	5.01
1933	5.02
1934	5.03
1935	5.04
1936	5.05
1937	5.07
1938	5.11
1939	5.16
1940	5.2
1941	5.25
1942	5.29
1943	5.31
1944	5.32
1945	5.33
1946	5.35
1947	5.36
1948	5.47
1949	5.57
1950	5.68
1951	5.7
1952	5.75
1953	5.79
1954	5.82
1955	5.85
1956	5.87
1957	5.88
1958	5.89
1959	5.88
1960	5.87
1961	5.85
1962	5.81
1963	5.77
1964	5.71
1965	5.64
1966	5.56
1967	5.47
1968	5.38
1969	5.28
1970	5.17
1971	5.06
1972	4.94
1973	4.81
1974	4.68
1975	4.54
1976	4.4
1977	4.26
1978	4.13
1979	4
1980	3.88
1981	3.78
1982	3.68
1983	3.58
1984	3.49
1985	3.41
1986	3.34
1987	3.26
1988	3.19
1989	3.12
1990	3.06
1991	3
1992	2.95
1993	2.91
1994	2.88
1995	2.85
1996	2.83
1997	2.81
1998	2.79
1999	2.77
2000	2.74
2001	2.72
2002	2.7
2003	2.68
2004	2.66
2005	2.65
2006	2.64
2007	2.64
2008	2.63
2009	2.63
2010	2.62
2011	2.61
2012	2.6
2013	2.59
2014	2.57
2015	2.54
2016	2.51
2017	2.49
2018	2.46