Year	Years
1800	35.5
1801	35.5
1802	35.5
1803	35.5
1804	35.5
1805	35.5
1806	35.5
1807	35.5
1808	35.5
1809	35.5
1810	35.5
1811	35.5
1812	35.5
1813	35.5
1814	35.5
1815	35.5
1816	35.5
1817	35.5
1818	35.5
1819	35.5
1820	35.5
1821	35.5
1822	35.5
1823	35.5
1824	35.5
1825	35.5
1826	35.5
1827	35.5
1828	35.5
1829	35.5
1830	35.5
1831	35.5
1832	35.5
1833	35.5
1834	35.5
1835	35.5
1836	35.5
1837	35.5
1838	35.5
1839	35.5
1840	35.5
1841	35.5
1842	35.5
1843	35.5
1844	35.5
1845	35.5
1846	35.5
1847	35.5
1848	35.5
1849	35.5
1850	35.5
1851	35.5
1852	35.5
1853	35.5
1854	35.5
1855	35.5
1856	35.5
1857	35.5
1858	35.5
1859	35.5
1860	35.5
1861	35.5
1862	35.5
1863	35.5
1864	35.5
1865	35.5
1866	35.5
1867	35.5
1868	35.5
1869	35.5
1870	35.5
1871	35.52
1872	35.54
1873	35.57
1874	35.59
1875	35.61
1876	35.63
1877	35.65
1878	35.68
1879	35.7
1880	35.72
1881	35.74
1882	35.76
1883	35.79
1884	35.81
1885	35.83
1886	35.85
1887	35.87
1888	35.9
1889	35.92
1890	35.94
1891	35.96
1892	35.98
1893	36.01
1894	36.03
1895	36.05
1896	36.07
1897	36.09
1898	36.12
1899	36.14
1900	36.16
1901	36.18
1902	36.2
1903	36.23
1904	36.25
1905	36.27
1906	36.29
1907	36.31
1908	36.34
1909	36.36
1910	36.38
1911	36.4
1912	36.42
1913	36.45
1914	36.47
1915	36.49
1916	36.51
1917	36.53
1918	32.31
1919	36.58
1920	36.6
1921	36.62
1922	36.64
1923	36.67
1924	36.69
1925	36.71
1926	36.73
1927	36.75
1928	36.78
1929	36.8
1930	36.82
1931	36.84
1932	36.86
1933	38.46
1934	40.05
1935	41.64
1936	43.24
1937	44.84
1938	46.44
1939	48.04
1940	49.64
1941	51.25
1942	52.86
1943	54.47
1944	56.09
1945	57.7
1946	59.32
1947	60.94
1948	62.56
1949	64.18
1950	65.8
1951	65.83
1952	65.87
1953	65.95
1954	66.06
1955	66.23
1956	66.41
1957	66.64
1958	66.89
1959	67.16
1960	67.44
1961	67.72
1962	67.98
1963	68.21
1964	68.41
1965	68.6
1966	68.76
1967	68.94
1968	69.13
1969	69.33
1970	69.55
1971	69.69
1972	69.87
1973	70.06
1974	70.31
1975	70.56
1976	70.87
1977	71.21
1978	71.56
1979	71.9
1980	72.16
1981	72.42
1982	72.74
1983	72.76
1984	72.94
1985	73.24
1986	73.58
1987	73.93
1988	74.27
1989	74.34
1990	74.58
1991	74.55
1992	74.46
1993	74.43
1994	74.41
1995	74.48
1996	74.47
1997	74.51
1998	74.5
1999	74.48
2000	74.42
2001	74.35
2002	74.3
2003	74.23
2004	73.99
2005	74.14
2006	74.12
2007	74.13
2008	74.13
2009	74.05
2010	74.07
2011	74.12
2012	74.12
2013	74.16
2014	74.24
2015	74.43
2016	74.6
2017	74.69
2018	74.78