Year	Total
1800	6.58
1801	6.58
1802	6.58
1803	6.58
1804	6.58
1805	6.58
1806	6.58
1807	6.58
1808	6.58
1809	6.58
1810	6.58
1811	6.58
1812	6.58
1813	6.58
1814	6.58
1815	6.58
1816	6.58
1817	6.58
1818	6.58
1819	6.58
1820	6.58
1821	6.58
1822	6.58
1823	6.58
1824	6.58
1825	6.58
1826	6.58
1827	6.58
1828	6.58
1829	6.58
1830	6.58
1831	6.58
1832	6.58
1833	6.58
1834	6.58
1835	6.58
1836	6.58
1837	6.58
1838	6.58
1839	6.58
1840	6.58
1841	6.58
1842	6.58
1843	6.58
1844	6.58
1845	6.58
1846	6.58
1847	6.58
1848	6.58
1849	6.58
1850	6.58
1851	6.58
1852	6.58
1853	6.58
1854	6.58
1855	6.58
1856	6.58
1857	6.58
1858	6.58
1859	6.58
1860	6.58
1861	6.58
1862	6.58
1863	6.58
1864	6.58
1865	6.58
1866	6.58
1867	6.58
1868	6.58
1869	6.58
1870	6.58
1871	6.58
1872	6.58
1873	6.58
1874	6.58
1875	6.58
1876	6.58
1877	6.58
1878	6.58
1879	6.58
1880	6.58
1881	6.58
1882	6.58
1883	6.58
1884	6.58
1885	6.58
1886	6.58
1887	6.58
1888	6.58
1889	6.58
1890	6.58
1891	6.58
1892	6.58
1893	6.58
1894	6.58
1895	6.58
1896	6.58
1897	6.58
1898	6.58
1899	6.58
1900	6.58
1901	6.58
1902	6.58
1903	6.58
1904	6.58
1905	6.58
1906	6.58
1907	6.58
1908	6.58
1909	6.58
1910	6.58
1911	6.58
1912	6.58
1913	6.58
1914	6.58
1915	6.58
1916	6.58
1917	6.58
1918	6.58
1919	6.58
1920	6.58
1921	6.58
1922	6.58
1923	6.58
1924	6.58
1925	6.58
1926	6.44
1927	6.29
1928	6.15
1929	6
1930	5.86
1931	5.72
1932	5.57
1933	5.42
1934	5.27
1935	5.12
1936	4.97
1937	4.82
1938	4.67
1939	4.52
1940	4.36
1941	4.35
1942	4.35
1943	4.34
1944	4.32
1945	4.31
1946	4.3
1947	4.28
1948	4.27
1949	4.25
1950	4.23
1951	4.26
1952	4.36
1953	4.49
1954	4.63
1955	4.78
1956	4.94
1957	5.1
1958	5.24
1959	5.37
1960	5.47
1961	5.52
1962	5.53
1963	5.52
1964	5.48
1965	5.42
1966	5.35
1967	5.3
1968	5.25
1969	5.21
1970	5.18
1971	5.15
1972	5.11
1973	5.05
1974	4.97
1975	4.88
1976	4.77
1977	4.66
1978	4.55
1979	4.45
1980	4.37
1981	4.3
1982	4.24
1983	4.2
1984	4.16
1985	4.13
1986	4.1
1987	4.07
1988	4.02
1989	3.96
1990	3.89
1991	3.8
1992	3.69
1993	3.57
1994	3.44
1995	3.3
1996	3.16
1997	3.02
1998	2.88
1999	2.76
2000	2.66
2001	2.58
2002	2.54
2003	2.52
2004	2.54
2005	2.58
2006	2.65
2007	2.73
2008	2.82
2009	2.91
2010	2.98
2011	3.04
2012	3.08
2013	3.09
2014	3.08
2015	3.05
2016	3.01
2017	2.96
2018	2.91