Year	Total
1800	5.72
1801	5.72
1802	5.72
1803	5.72
1804	5.72
1805	5.72
1806	5.72
1807	5.72
1808	5.72
1809	5.72
1810	5.72
1811	5.72
1812	5.72
1813	5.72
1814	5.72
1815	5.72
1816	5.72
1817	5.72
1818	5.72
1819	5.72
1820	5.72
1821	5.72
1822	5.72
1823	5.72
1824	5.72
1825	5.72
1826	5.72
1827	5.72
1828	5.72
1829	5.72
1830	5.72
1831	5.72
1832	5.72
1833	5.72
1834	5.72
1835	5.72
1836	5.72
1837	5.72
1838	5.72
1839	5.72
1840	5.72
1841	5.72
1842	5.72
1843	5.72
1844	5.72
1845	5.72
1846	5.72
1847	5.72
1848	5.72
1849	5.72
1850	5.72
1851	5.72
1852	5.72
1853	5.72
1854	5.72
1855	5.72
1856	5.72
1857	5.72
1858	5.72
1859	5.72
1860	5.72
1861	5.72
1862	5.63
1863	5.54
1864	5.44
1865	5.35
1866	5.26
1867	5.17
1868	5.07
1869	4.98
1870	4.89
1871	4.8
1872	4.77
1873	4.75
1874	4.72
1875	4.7
1876	4.68
1877	4.65
1878	4.63
1879	4.6
1880	4.58
1881	4.56
1882	4.52
1883	4.49
1884	4.45
1885	4.42
1886	4.38
1887	4.35
1888	4.31
1889	4.27
1890	4.24
1891	4.2
1892	4.19
1893	4.17
1894	4.15
1895	4.13
1896	4.11
1897	4.1
1898	4.08
1899	4.06
1900	4.04
1901	4.02
1902	4.03
1903	4.03
1904	4.03
1905	4.03
1906	4.04
1907	4.04
1908	4.04
1909	4.04
1910	4.05
1911	4.05
1912	4
1913	3.95
1914	3.89
1915	3.84
1916	3.79
1917	3.74
1918	3.68
1919	3.63
1920	3.58
1921	3.53
1922	3.4
1923	3.23
1924	3.22
1925	3.13
1926	3.35
1927	3.32
1928	3.29
1929	3.22
1930	3.28
1931	3.19
1932	3.08
1933	2.86
1934	2.8
1935	2.75
1936	2.69
1937	2.64
1938	2.7
1939	2.65
1940	2.76
1941	2.82
1942	2.96
1943	3.04
1944	3
1945	3.01
1946	3.37
1947	3.59
1948	3.44
1949	3.45
1950	3.45
1951	3.49
1952	3.61
1953	3.7
1954	3.78
1955	3.82
1956	3.87
1957	3.91
1958	3.92
1959	3.92
1960	3.88
1961	3.81
1962	3.7
1963	3.56
1964	3.38
1965	3.18
1966	2.96
1967	2.75
1968	2.56
1969	2.38
1970	2.23
1971	2.11
1972	2.01
1973	1.93
1974	1.87
1975	1.81
1976	1.77
1977	1.74
1978	1.71
1979	1.69
1980	1.67
1981	1.65
1982	1.63
1983	1.62
1984	1.62
1985	1.61
1986	1.61
1987	1.62
1988	1.63
1989	1.65
1990	1.66
1991	1.67
1992	1.68
1993	1.67
1994	1.66
1995	1.64
1996	1.61
1997	1.58
1998	1.56
1999	1.54
2000	1.52
2001	1.52
2002	1.52
2003	1.53
2004	1.55
2005	1.57
2006	1.6
2007	1.62
2008	1.63
2009	1.64
2010	1.64
2011	1.63
2012	1.62
2013	1.61
2014	1.6
2015	1.59
2016	1.58
2017	1.57
2018	1.56