Year	Total
1800	5.49
1801	5.49
1802	5.49
1803	5.49
1804	5.49
1805	5.49
1806	5.49
1807	5.49
1808	5.49
1809	5.49
1810	5.49
1811	5.49
1812	5.49
1813	5.49
1814	5.49
1815	5.49
1816	5.49
1817	5.49
1818	5.49
1819	5.49
1820	5.49
1821	5.49
1822	5.49
1823	5.49
1824	5.49
1825	5.49
1826	5.49
1827	5.49
1828	5.49
1829	5.49
1830	5.49
1831	5.49
1832	5.49
1833	5.49
1834	5.49
1835	5.49
1836	5.49
1837	5.49
1838	5.49
1839	5.49
1840	5.49
1841	5.49
1842	5.49
1843	5.49
1844	5.49
1845	5.49
1846	5.49
1847	5.49
1848	5.49
1849	5.49
1850	5.49
1851	5.49
1852	5.49
1853	5.49
1854	5.49
1855	5.49
1856	5.49
1857	5.49
1858	5.49
1859	5.49
1860	5.49
1861	5.49
1862	5.49
1863	5.49
1864	5.49
1865	5.49
1866	5.49
1867	5.49
1868	5.49
1869	5.49
1870	5.49
1871	5.49
1872	5.49
1873	5.49
1874	5.49
1875	5.49
1876	5.49
1877	5.49
1878	5.49
1879	5.49
1880	5.49
1881	5.48
1882	5.46
1883	5.45
1884	5.44
1885	5.42
1886	5.41
1887	5.4
1888	5.38
1889	5.37
1890	5.36
1891	5.34
1892	5.33
1893	5.32
1894	5.31
1895	5.29
1896	5.28
1897	5.27
1898	5.25
1899	5.24
1900	5.23
1901	5.28
1902	5.33
1903	5.39
1904	5.44
1905	5.49
1906	5.36
1907	5.23
1908	5.1
1909	4.97
1910	4.84
1911	4.69
1912	4.54
1913	4.39
1914	4.24
1915	4.09
1916	4.19
1917	4.3
1918	4.41
1919	4.52
1920	4.62
1921	4.59
1922	4.56
1923	4.53
1924	4.49
1925	4.46
1926	4.49
1927	4.51
1928	4.53
1929	4.56
1930	4.58
1931	4.58
1932	4.57
1933	4.57
1934	4.56
1935	4.56
1936	4.52
1937	4.48
1938	4.44
1939	4.4
1940	4.36
1941	4.51
1942	4.67
1943	4.83
1944	4.99
1945	5.15
1946	5.13
1947	5.12
1948	4.84
1949	4.57
1950	4.21
1951	4.2
1952	4.16
1953	4.12
1954	4.07
1955	4.01
1956	3.94
1957	3.86
1958	3.77
1959	3.66
1960	3.53
1961	3.38
1962	3.2
1963	3.01
1964	2.8
1965	2.59
1966	2.4
1967	2.24
1968	2.11
1969	2.02
1970	1.98
1971	1.96
1972	1.98
1973	2
1974	2.04
1975	2.06
1976	2.08
1977	2.09
1978	2.08
1979	2.06
1980	2.03
1981	2
1982	1.98
1983	1.97
1984	1.97
1985	1.98
1986	1.99
1987	2.01
1988	2.02
1989	2.03
1990	2.03
1991	2.02
1992	2.01
1993	2
1994	1.99
1995	1.97
1996	1.93
1997	1.89
1998	1.83
1999	1.75
2000	1.67
2001	1.6
2002	1.53
2003	1.47
2004	1.42
2005	1.4
2006	1.38
2007	1.38
2008	1.38
2009	1.38
2010	1.39
2011	1.4
2012	1.41
2013	1.42
2014	1.43
2015	1.44
2016	1.46
2017	1.47
2018	1.48