Year	Total
1800	6.54
1801	6.54
1802	6.54
1803	6.54
1804	6.54
1805	6.54
1806	6.54
1807	6.54
1808	6.54
1809	6.54
1810	6.54
1811	6.54
1812	6.54
1813	6.54
1814	6.54
1815	6.54
1816	6.54
1817	6.54
1818	6.54
1819	6.54
1820	6.54
1821	6.54
1822	6.54
1823	6.54
1824	6.54
1825	6.54
1826	6.54
1827	6.54
1828	6.54
1829	6.54
1830	6.54
1831	6.54
1832	6.54
1833	6.54
1834	6.54
1835	6.54
1836	6.54
1837	6.54
1838	6.54
1839	6.54
1840	6.54
1841	6.54
1842	6.54
1843	6.54
1844	6.54
1845	6.54
1846	6.54
1847	6.54
1848	6.54
1849	6.54
1850	6.54
1851	6.54
1852	6.54
1853	6.54
1854	6.54
1855	6.54
1856	6.54
1857	6.54
1858	6.54
1859	6.54
1860	6.54
1861	6.54
1862	6.54
1863	6.54
1864	6.54
1865	6.54
1866	6.54
1867	6.54
1868	6.54
1869	6.54
1870	6.54
1871	6.54
1872	6.54
1873	6.54
1874	6.54
1875	6.54
1876	6.54
1877	6.54
1878	6.54
1879	6.54
1880	6.54
1881	6.54
1882	6.54
1883	6.54
1884	6.54
1885	6.54
1886	6.54
1887	6.54
1888	6.54
1889	6.54
1890	6.54
1891	6.54
1892	6.54
1893	6.54
1894	6.54
1895	6.54
1896	6.54
1897	6.54
1898	6.54
1899	6.54
1900	6.54
1901	6.54
1902	6.54
1903	6.54
1904	6.54
1905	6.54
1906	6.54
1907	6.54
1908	6.54
1909	6.54
1910	6.54
1911	6.54
1912	6.54
1913	6.54
1914	6.54
1915	6.54
1916	6.54
1917	6.54
1918	6.54
1919	6.54
1920	6.54
1921	6.54
1922	6.54
1923	6.54
1924	6.54
1925	6.54
1926	6.57
1927	6.6
1928	6.63
1929	6.65
1930	6.68
1931	6.71
1932	6.74
1933	6.77
1934	6.8
1935	6.83
1936	6.86
1937	6.88
1938	6.91
1939	6.94
1940	6.97
1941	7
1942	7.03
1943	7.06
1944	7.08
1945	7.11
1946	7.14
1947	7.17
1948	7.2
1949	7.23
1950	7.26
1951	7.28
1952	7.32
1953	7.36
1954	7.37
1955	7.38
1956	7.37
1957	7.35
1958	7.32
1959	7.28
1960	7.22
1961	7.16
1962	7.07
1963	6.98
1964	6.88
1965	6.76
1966	6.63
1967	6.49
1968	6.35
1969	6.19
1970	6.01
1971	5.83
1972	5.63
1973	5.42
1974	5.2
1975	4.97
1976	4.75
1977	4.54
1978	4.34
1979	4.15
1980	3.99
1981	3.83
1982	3.69
1983	3.56
1984	3.44
1985	3.33
1986	3.23
1987	3.14
1988	3.07
1989	3.01
1990	2.96
1991	2.91
1992	2.86
1993	2.81
1994	2.76
1995	2.7
1996	2.64
1997	2.58
1998	2.51
1999	2.44
2000	2.38
2001	2.32
2002	2.27
2003	2.23
2004	2.2
2005	2.17
2006	2.15
2007	2.13
2008	2.11
2009	2.09
2010	2.07
2011	2.05
2012	2.02
2013	2
2014	1.98
2015	1.95
2016	1.93
2017	1.91
2018	1.89