Year	Total
1800	5.16
1801	5.16
1802	5.16
1803	5.16
1804	5.16
1805	5.16
1806	5.16
1807	5.16
1808	5.16
1809	5.16
1810	5.16
1811	5.16
1812	5.16
1813	5.16
1814	5.16
1815	5.16
1816	5.16
1817	5.16
1818	5.16
1819	5.16
1820	5.16
1821	5.16
1822	5.16
1823	5.16
1824	5.16
1825	5.16
1826	5.16
1827	5.16
1828	5.16
1829	5.16
1830	5.16
1831	5.16
1832	5.16
1833	5.16
1834	5.16
1835	5.16
1836	5.16
1837	5.16
1838	5.16
1839	5.16
1840	5.16
1841	5.16
1842	5.16
1843	5.16
1844	5.16
1845	5.16
1846	5.16
1847	5.16
1848	5.16
1849	5.16
1850	5.16
1851	5.16
1852	5.16
1853	5.16
1854	5.16
1855	5.16
1856	5.16
1857	5.16
1858	5.16
1859	5.16
1860	5.16
1861	5.16
1862	5.16
1863	5.16
1864	5.16
1865	5.16
1866	5.16
1867	5.16
1868	5.16
1869	5.16
1870	5.16
1871	5.16
1872	5.16
1873	5.16
1874	5.16
1875	5.16
1876	5.05
1877	4.95
1878	4.84
1879	4.73
1880	4.62
1881	4.52
1882	4.92
1883	5.16
1884	5.16
1885	5.04
1886	4.37
1887	5.15
1888	5.05
1889	4.92
1890	4.7
1891	5.24
1892	4.82
1893	4.69
1894	5.09
1895	5.45
1896	5.55
1897	5.7
1898	5.28
1899	5.45
1900	5.67
1901	5.7
1902	5.73
1903	5.76
1904	5.8
1905	5.83
1906	5.77
1907	5.72
1908	5.66
1909	5.6
1910	5.55
1911	5.52
1912	5.48
1913	5.45
1914	5.42
1915	5.39
1916	5.38
1917	5.37
1918	5.36
1919	5.35
1920	5.35
1921	5.27
1922	5.19
1923	5.11
1924	5.03
1925	4.94
1926	4.8
1927	4.65
1928	4.5
1929	4.36
1930	4.21
1931	4.07
1932	3.94
1933	3.81
1934	3.67
1935	3.54
1936	3.43
1937	3.31
1938	3.2
1939	3.09
1940	2.97
1941	3.03
1942	3.08
1943	3.13
1944	3.18
1945	3.23
1946	3.12
1947	3
1948	2.89
1949	2.77
1950	2.66
1951	2.62
1952	2.55
1953	2.49
1954	2.43
1955	2.39
1956	2.35
1957	2.31
1958	2.29
1959	2.26
1960	2.25
1961	2.23
1962	2.21
1963	2.2
1964	2.18
1965	2.17
1966	2.15
1967	2.14
1968	2.13
1969	2.13
1970	2.14
1971	2.14
1972	2.16
1973	2.17
1974	2.18
1975	2.19
1976	2.19
1977	2.18
1978	2.17
1979	2.14
1980	2.11
1981	2.08
1982	2.06
1983	2.03
1984	2.02
1985	2
1986	1.98
1987	1.94
1988	1.9
1989	1.84
1990	1.77
1991	1.69
1992	1.6
1993	1.51
1994	1.42
1995	1.34
1996	1.28
1997	1.23
1998	1.2
1999	1.18
2000	1.18
2001	1.19
2002	1.22
2003	1.26
2004	1.3
2005	1.34
2006	1.38
2007	1.42
2008	1.45
2009	1.47
2010	1.49
2011	1.5
2012	1.51
2013	1.52
2014	1.53
2015	1.55
2016	1.56
2017	1.58
2018	1.59