Year	Total
1800	5.67
1801	5.67
1802	5.67
1803	5.67
1804	5.67
1805	5.67
1806	5.67
1807	5.67
1808	5.67
1809	5.67
1810	5.67
1811	5.67
1812	5.67
1813	5.67
1814	5.67
1815	5.67
1816	5.67
1817	5.67
1818	5.67
1819	5.67
1820	5.67
1821	5.67
1822	5.67
1823	5.67
1824	5.67
1825	5.67
1826	5.67
1827	5.67
1828	5.67
1829	5.67
1830	5.67
1831	5.67
1832	5.67
1833	5.67
1834	5.67
1835	5.67
1836	5.67
1837	5.67
1838	5.67
1839	5.67
1840	5.67
1841	5.67
1842	5.67
1843	5.67
1844	5.67
1845	5.67
1846	5.67
1847	5.67
1848	5.67
1849	5.67
1850	5.67
1851	5.67
1852	5.67
1853	5.67
1854	5.67
1855	5.67
1856	5.67
1857	5.67
1858	5.67
1859	5.67
1860	5.67
1861	5.67
1862	5.67
1863	5.67
1864	5.67
1865	5.67
1866	5.67
1867	5.67
1868	5.67
1869	5.67
1870	5.67
1871	5.67
1872	5.67
1873	5.67
1874	5.67
1875	5.67
1876	5.67
1877	5.67
1878	5.67
1879	5.67
1880	5.67
1881	5.67
1882	5.67
1883	5.67
1884	5.67
1885	5.67
1886	5.67
1887	5.67
1888	5.67
1889	5.67
1890	5.67
1891	5.67
1892	5.67
1893	5.67
1894	5.67
1895	5.67
1896	5.67
1897	5.67
1898	5.67
1899	5.67
1900	5.67
1901	5.67
1902	5.67
1903	5.67
1904	5.67
1905	5.67
1906	5.67
1907	5.67
1908	5.67
1909	5.67
1910	5.67
1911	5.67
1912	5.67
1913	5.67
1914	5.67
1915	5.67
1916	5.67
1917	5.67
1918	5.67
1919	5.67
1920	5.67
1921	5.67
1922	5.67
1923	5.67
1924	5.67
1925	5.67
1926	5.67
1927	5.67
1928	5.67
1929	5.67
1930	5.67
1931	5.67
1932	5.67
1933	5.67
1934	5.67
1935	5.67
1936	5.67
1937	5.67
1938	5.67
1939	5.67
1940	5.67
1941	5.67
1942	5.67
1943	5.67
1944	5.67
1945	5.67
1946	5.67
1947	5.67
1948	5.67
1949	5.67
1950	5.67
1951	5.67
1952	5.68
1953	5.69
1954	5.7
1955	5.72
1956	5.74
1957	5.77
1958	5.8
1959	5.84
1960	5.88
1961	5.92
1962	5.97
1963	6.01
1964	6.05
1965	6.09
1966	6.14
1967	6.18
1968	6.22
1969	6.25
1970	6.29
1971	6.32
1972	6.35
1973	6.37
1974	6.38
1975	6.39
1976	6.38
1977	6.36
1978	6.32
1979	6.27
1980	6.21
1981	6.13
1982	6.05
1983	5.96
1984	5.87
1985	5.77
1986	5.68
1987	5.59
1988	5.5
1989	5.42
1990	5.35
1991	5.29
1992	5.24
1993	5.2
1994	5.17
1995	5.14
1996	5.13
1997	5.12
1998	5.11
1999	5.11
2000	5.1
2001	5.09
2002	5.08
2003	5.07
2004	5.05
2005	5.04
2006	5.03
2007	5.01
2008	5
2009	4.97
2010	4.95
2011	4.92
2012	4.88
2013	4.83
2014	4.78
2015	4.72
2016	4.66
2017	4.6
2018	4.54