Year	Years
1800	36.1
1801	36.1
1802	36.1
1803	36.1
1804	36.1
1805	36.1
1806	36.1
1807	36.1
1808	36.1
1809	36.1
1810	36.1
1811	36.1
1812	36.1
1813	36.1
1814	36.1
1815	36.1
1816	36.1
1817	36.1
1818	36.1
1819	36.1
1820	36.1
1821	36.1
1822	36.1
1823	36.1
1824	36.1
1825	36.1
1826	36.1
1827	36.1
1828	36.1
1829	36.1
1830	36.1
1831	36.1
1832	36.1
1833	36.1
1834	36.1
1835	36.1
1836	36.1
1837	36.1
1838	36.1
1839	36.1
1840	36.1
1841	36.1
1842	36.1
1843	36.1
1844	36.1
1845	36.1
1846	36.1
1847	36.1
1848	36.1
1849	36.1
1850	36.1
1851	36.1
1852	36.1
1853	36.1
1854	36.1
1855	36.1
1856	36.1
1857	36.1
1858	36.1
1859	36.1
1860	36.1
1861	36.1
1862	36.1
1863	36.1
1864	36.1
1865	36.1
1866	36.1
1867	36.1
1868	36.1
1869	36.1
1870	36.1
1871	36.11
1872	36.11
1873	36.12
1874	36.13
1875	36.13
1876	36.14
1877	36.14
1878	36.15
1879	36.16
1880	36.16
1881	36.17
1882	36.18
1883	36.18
1884	36.19
1885	36.19
1886	36.2
1887	36.21
1888	36.21
1889	36.22
1890	36.23
1891	36.23
1892	36.24
1893	36.24
1894	36.25
1895	36.26
1896	36.26
1897	36.27
1898	36.28
1899	36.28
1900	36.29
1901	36.29
1902	36.3
1903	36.31
1904	36.31
1905	36.32
1906	36.33
1907	36.33
1908	36.34
1909	36.34
1910	36.35
1911	36.36
1912	36.36
1913	36.37
1914	36.38
1915	36.38
1916	36.39
1917	36.39
1918	19.97
1919	36.41
1920	36.41
1921	36.95
1922	37.49
1923	38.03
1924	38.57
1925	39.11
1926	39.65
1927	40.18
1928	40.73
1929	41.27
1930	41.81
1931	42.35
1932	42.89
1933	43.43
1934	43.97
1935	44.52
1936	45.06
1937	45.59
1938	46.14
1939	46.68
1940	47.23
1941	46.57
1942	45.19
1943	43.92
1944	42.76
1945	42.73
1946	48.63
1947	51.17
1948	52.2
1949	53.02
1950	53.78
1951	54.28
1952	55.25
1953	56.19
1954	57.07
1955	57.92
1956	58.72
1957	59.48
1958	60.21
1959	60.92
1960	61.58
1961	62.23
1962	62.86
1963	63.48
1964	64.09
1965	64.69
1966	65.29
1967	65.87
1968	66.42
1969	66.95
1970	67.45
1971	67.78
1972	68.08
1973	68.37
1974	68.64
1975	68.87
1976	69.04
1977	69.17
1978	69.28
1979	69.37
1980	69.39
1981	69.4
1982	69.48
1983	69.67
1984	70.02
1985	70.23
1986	70.32
1987	70.29
1988	70.21
1989	70.3
1990	70.57
1991	70.74
1992	70.81
1993	70.81
1994	71.09
1995	71.19
1996	71.47
1997	71.63
1998	71.7
1999	71.94
2000	72.23
2001	72.28
2002	72.5
2003	72.57
2004	72.7
2005	72.89
2006	73.11
2007	73.33
2008	73.54
2009	73.68
2010	74.01
2011	74.21
2012	74.22
2013	74.29
2014	74.44
2015	74.63
2016	74.87
2017	75.02
2018	75.17