Year	Total
1800	6.27
1801	6.27
1802	6.27
1803	6.27
1804	6.27
1805	6.27
1806	6.27
1807	6.27
1808	6.27
1809	6.27
1810	6.27
1811	6.27
1812	6.27
1813	6.27
1814	6.27
1815	6.27
1816	6.27
1817	6.27
1818	6.27
1819	6.27
1820	6.27
1821	6.27
1822	6.27
1823	6.27
1824	6.27
1825	6.27
1826	6.27
1827	6.27
1828	6.27
1829	6.27
1830	6.27
1831	6.27
1832	6.27
1833	6.27
1834	6.27
1835	6.27
1836	6.27
1837	6.27
1838	6.27
1839	6.27
1840	6.27
1841	6.27
1842	6.27
1843	6.27
1844	6.27
1845	6.27
1846	6.27
1847	6.27
1848	6.27
1849	6.27
1850	6.27
1851	6.27
1852	6.27
1853	6.27
1854	6.27
1855	6.27
1856	6.27
1857	6.27
1858	6.27
1859	6.27
1860	6.27
1861	6.27
1862	6.27
1863	6.27
1864	6.27
1865	6.27
1866	6.27
1867	6.27
1868	6.27
1869	6.27
1870	6.27
1871	6.27
1872	6.27
1873	6.27
1874	6.27
1875	6.27
1876	6.27
1877	6.27
1878	6.27
1879	6.27
1880	6.27
1881	6.27
1882	6.27
1883	6.27
1884	6.27
1885	6.27
1886	6.27
1887	6.27
1888	6.27
1889	6.27
1890	6.27
1891	6.27
1892	6.27
1893	6.27
1894	6.27
1895	6.27
1896	6.27
1897	6.27
1898	6.27
1899	6.27
1900	6.27
1901	6.27
1902	6.27
1903	6.27
1904	6.27
1905	6.27
1906	6.27
1907	6.27
1908	6.27
1909	6.27
1910	6.27
1911	6.27
1912	6.27
1913	6.27
1914	6.27
1915	6.27
1916	6.27
1917	6.27
1918	6.27
1919	6.27
1920	6.27
1921	6.27
1922	6.27
1923	6.27
1924	6.27
1925	6.27
1926	6.22
1927	6.17
1928	6.13
1929	6.08
1930	6.03
1931	5.98
1932	5.94
1933	5.89
1934	5.84
1935	5.79
1936	5.74
1937	5.7
1938	5.65
1939	5.6
1940	5.55
1941	5.51
1942	5.46
1943	5.41
1944	5.36
1945	5.31
1946	5.27
1947	5.22
1948	5.17
1949	5.12
1950	5.08
1951	5.05
1952	5.01
1953	4.98
1954	4.95
1955	4.93
1956	4.93
1957	4.92
1958	4.93
1959	4.95
1960	4.97
1961	5
1962	5.03
1963	5.05
1964	5.08
1965	5.08
1966	5.06
1967	5.01
1968	4.92
1969	4.8
1970	4.65
1971	4.47
1972	4.27
1973	4.06
1974	3.85
1975	3.66
1976	3.51
1977	3.4
1978	3.34
1979	3.33
1980	3.36
1981	3.42
1982	3.48
1983	3.55
1984	3.6
1985	3.65
1986	3.69
1987	3.74
1988	3.79
1989	3.85
1990	3.91
1991	3.97
1992	4.01
1993	4.03
1994	4.04
1995	4.03
1996	4
1997	3.96
1998	3.91
1999	3.87
2000	3.82
2001	3.79
2002	3.75
2003	3.72
2004	3.7
2005	3.68
2006	3.66
2007	3.64
2008	3.62
2009	3.59
2010	3.56
2011	3.52
2012	3.48
2013	3.44
2014	3.4
2015	3.36
2016	3.32
2017	3.28
2018	3.25