Year	Total
1800	5.76
1801	5.76
1802	5.75
1803	5.74
1804	5.74
1805	5.73
1806	5.72
1807	5.72
1808	5.71
1809	5.7
1810	5.7
1811	5.69
1812	5.68
1813	5.67
1814	5.67
1815	5.66
1816	5.65
1817	5.65
1818	5.64
1819	5.63
1820	5.63
1821	5.62
1822	5.61
1823	5.61
1824	5.6
1825	5.59
1826	5.59
1827	5.58
1828	5.57
1829	5.57
1830	5.56
1831	5.55
1832	5.55
1833	5.54
1834	5.53
1835	5.53
1836	5.52
1837	5.51
1838	5.51
1839	5.5
1840	5.49
1841	5.49
1842	5.48
1843	5.47
1844	5.47
1845	5.46
1846	5.45
1847	5.45
1848	5.44
1849	5.43
1850	5.43
1851	5.42
1852	5.41
1853	5.41
1854	5.4
1855	5.39
1856	5.39
1857	5.38
1858	5.37
1859	5.37
1860	5.36
1861	5.35
1862	5.35
1863	5.34
1864	5.33
1865	5.33
1866	5.32
1867	5.31
1868	5.31
1869	5.3
1870	5.29
1871	5.29
1872	5.28
1873	5.27
1874	5.27
1875	5.26
1876	5.25
1877	5.25
1878	5.24
1879	5.23
1880	5.23
1881	5.22
1882	5.21
1883	5.21
1884	5.2
1885	5.19
1886	5.19
1887	5.18
1888	5.17
1889	5.17
1890	5.16
1891	5.15
1892	5.15
1893	5.14
1894	5.13
1895	5.13
1896	5.12
1897	5.11
1898	5.06
1899	5.01
1900	4.96
1901	4.91
1902	4.86
1903	4.81
1904	4.76
1905	4.7
1906	4.65
1907	4.6
1908	4.55
1909	4.5
1910	4.45
1911	4.4
1912	4.35
1913	4.3
1914	4.25
1915	4.19
1916	4.14
1917	4.09
1918	4.04
1919	3.99
1920	3.94
1921	3.89
1922	3.84
1923	3.79
1924	3.73
1925	3.68
1926	3.63
1927	3.64
1928	3.65
1929	3.66
1930	3.67
1931	3.56
1932	3.46
1933	3.35
1934	3.25
1935	3.14
1936	3.13
1937	3.13
1938	3.12
1939	3.12
1940	3.11
1941	3.07
1942	3.04
1943	3.01
1944	2.97
1945	2.94
1946	2.91
1947	2.87
1948	2.84
1949	2.81
1950	2.78
1951	2.79
1952	2.79
1953	2.78
1954	2.77
1955	2.75
1956	2.71
1957	2.68
1958	2.63
1959	2.59
1960	2.54
1961	2.49
1962	2.45
1963	2.41
1964	2.38
1965	2.35
1966	2.33
1967	2.32
1968	2.31
1969	2.31
1970	2.31
1971	2.3
1972	2.29
1973	2.27
1974	2.24
1975	2.21
1976	2.17
1977	2.13
1978	2.1
1979	2.07
1980	2.06
1981	2.05
1982	2.05
1983	2.05
1984	2.06
1985	2.06
1986	2.06
1987	2.05
1988	2.03
1989	2
1990	1.96
1991	1.91
1992	1.85
1993	1.78
1994	1.71
1995	1.64
1996	1.57
1997	1.5
1998	1.44
1999	1.38
2000	1.34
2001	1.31
2002	1.29
2003	1.29
2004	1.3
2005	1.32
2006	1.35
2007	1.39
2008	1.43
2009	1.47
2010	1.51
2011	1.54
2012	1.57
2013	1.6
2014	1.62
2015	1.64
2016	1.65
2017	1.66
2018	1.67