Year	Total
1800	6.19
1801	6.19
1802	6.19
1803	6.19
1804	6.19
1805	6.19
1806	6.19
1807	6.19
1808	6.19
1809	6.19
1810	6.19
1811	6.19
1812	6.19
1813	6.19
1814	6.19
1815	6.19
1816	6.19
1817	6.19
1818	6.19
1819	6.19
1820	6.19
1821	6.19
1822	6.19
1823	6.19
1824	6.19
1825	6.19
1826	6.19
1827	6.19
1828	6.19
1829	6.19
1830	6.19
1831	6.19
1832	6.19
1833	6.19
1834	6.19
1835	6.19
1836	6.19
1837	6.19
1838	6.19
1839	6.19
1840	6.19
1841	6.19
1842	6.19
1843	6.19
1844	6.19
1845	6.19
1846	6.19
1847	6.19
1848	6.19
1849	6.19
1850	6.19
1851	6.19
1852	6.19
1853	6.19
1854	6.19
1855	6.19
1856	6.19
1857	6.19
1858	6.19
1859	6.19
1860	6.19
1861	6.19
1862	6.19
1863	6.19
1864	6.19
1865	6.19
1866	6.19
1867	6.19
1868	6.19
1869	6.19
1870	6.19
1871	6.19
1872	6.19
1873	6.19
1874	6.19
1875	6.19
1876	6.19
1877	6.19
1878	6.19
1879	6.19
1880	6.19
1881	6.19
1882	6.19
1883	6.19
1884	6.19
1885	6.19
1886	6.19
1887	6.19
1888	6.19
1889	6.19
1890	6.19
1891	6.19
1892	6.19
1893	6.19
1894	6.19
1895	6.19
1896	6.19
1897	6.19
1898	6.19
1899	6.19
1900	6.19
1901	6.21
1902	6.23
1903	6.25
1904	6.27
1905	6.29
1906	6.32
1907	6.34
1908	6.34
1909	6.34
1910	6.34
1911	6.35
1912	6.35
1913	6.35
1914	6.35
1915	6.35
1916	6.35
1917	6.35
1918	6.36
1919	6.38
1920	6.39
1921	6.41
1922	6.42
1923	6.43
1924	6.44
1925	6.45
1926	6.46
1927	6.47
1928	6.42
1929	6.37
1930	6.33
1931	6.28
1932	6.24
1933	6.22
1934	6.19
1935	6.17
1936	6.15
1937	6.13
1938	6.13
1939	6.12
1940	6.12
1941	6.11
1942	6.11
1943	6.13
1944	6.16
1945	6.19
1946	6.22
1947	6.25
1948	6.42
1949	6.6
1950	6.77
1951	6.77
1952	6.76
1953	6.75
1954	6.75
1955	6.76
1956	6.77
1957	6.78
1958	6.79
1959	6.8
1960	6.81
1961	6.8
1962	6.78
1963	6.74
1964	6.67
1965	6.57
1966	6.43
1967	6.25
1968	6.03
1969	5.8
1970	5.55
1971	5.3
1972	5.07
1973	4.86
1974	4.68
1975	4.52
1976	4.4
1977	4.28
1978	4.18
1979	4.07
1980	3.97
1981	3.86
1982	3.74
1983	3.63
1984	3.53
1985	3.42
1986	3.32
1987	3.23
1988	3.14
1989	3.07
1990	2.99
1991	2.93
1992	2.86
1993	2.79
1994	2.73
1995	2.66
1996	2.6
1997	2.54
1998	2.48
1999	2.43
2000	2.39
2001	2.35
2002	2.31
2003	2.27
2004	2.24
2005	2.2
2006	2.16
2007	2.12
2008	2.08
2009	2.04
2010	2.01
2011	1.98
2012	1.95
2013	1.92
2014	1.9
2015	1.87
2016	1.85
2017	1.83
2018	1.82