Year	Total
1800	5.03
1801	5.03
1802	5.03
1803	5.03
1804	5.03
1805	5.03
1806	5.03
1807	5.03
1808	5.03
1809	5.03
1810	5.03
1811	5.03
1812	5.03
1813	5.03
1814	5.03
1815	5.03
1816	5.03
1817	5.03
1818	5.03
1819	5.03
1820	5.03
1821	5.03
1822	5.03
1823	5.03
1824	5.03
1825	5.03
1826	5.03
1827	5.03
1828	5.03
1829	5.03
1830	5.03
1831	5.03
1832	5.03
1833	5.03
1834	5.03
1835	5.03
1836	5.03
1837	5.03
1838	5.03
1839	5.03
1840	5.03
1841	5.03
1842	5.03
1843	5.03
1844	5.03
1845	5.03
1846	5.03
1847	5.03
1848	5.03
1849	5.03
1850	5.03
1851	5.03
1852	5.03
1853	5.03
1854	5.03
1855	5.03
1856	5.03
1857	5.03
1858	5.03
1859	5.03
1860	5.03
1861	5.03
1862	5.03
1863	5.03
1864	5.03
1865	5.03
1866	5.03
1867	5.03
1868	5.03
1869	5.03
1870	5.03
1871	5.03
1872	5.03
1873	5.03
1874	5.03
1875	5.03
1876	5.03
1877	5.03
1878	5.03
1879	5.03
1880	5.03
1881	5
1882	4.98
1883	4.95
1884	4.93
1885	4.9
1886	4.89
1887	4.87
1888	4.85
1889	4.83
1890	4.81
1891	4.84
1892	4.87
1893	4.9
1894	4.93
1895	4.96
1896	5
1897	5.04
1898	5.09
1899	5.13
1900	5.17
1901	5.13
1902	5.1
1903	5.06
1904	5.02
1905	4.98
1906	4.91
1907	4.83
1908	4.76
1909	4.68
1910	4.61
1911	5.25
1912	5.11
1913	4.96
1914	4.81
1915	4.66
1916	4.67
1917	4.68
1918	4.69
1919	4.7
1920	4.7
1921	4.9
1922	5.11
1923	5.31
1924	5.51
1925	5.71
1926	5.41
1927	5.12
1928	4.82
1929	4.53
1930	4.23
1931	4.27
1932	4.3
1933	4.33
1934	4.36
1935	4.4
1936	4.3
1937	4.2
1938	4.1
1939	4
1940	3.9
1941	4.15
1942	4.4
1943	4.65
1944	4.9
1945	5.15
1946	5.33
1947	5.51
1948	5.69
1949	5.87
1950	6.05
1951	5.99
1952	5.9
1953	5.84
1954	5.82
1955	5.83
1956	5.87
1957	5.94
1958	6.03
1959	6.11
1960	6.17
1961	6.18
1962	6.12
1963	5.99
1964	5.79
1965	5.51
1966	5.19
1967	4.85
1968	4.52
1969	4.21
1970	3.95
1971	3.74
1972	3.58
1973	3.44
1974	3.34
1975	3.26
1976	3.17
1977	3.07
1978	2.95
1979	2.82
1980	2.67
1981	2.53
1982	2.41
1983	2.33
1984	2.27
1985	2.25
1986	2.26
1987	2.27
1988	2.29
1989	2.3
1990	2.29
1991	2.28
1992	2.25
1993	2.22
1994	2.18
1995	2.14
1996	2.1
1997	2.07
1998	2.04
1999	2.01
2000	1.99
2001	1.96
2002	1.94
2003	1.9
2004	1.87
2005	1.82
2006	1.78
2007	1.72
2008	1.67
2009	1.62
2010	1.58
2011	1.54
2012	1.51
2013	1.48
2014	1.46
2015	1.44
2016	1.43
2017	1.43
2018	1.43