Year	Years
1800	33.54
1801	33.54
1802	33.54
1803	33.54
1804	33.54
1805	33.54
1806	33.54
1807	33.54
1808	33.54
1809	33.54
1810	33.54
1811	33.54
1812	33.54
1813	33.54
1814	33.54
1815	33.54
1816	33.54
1817	33.54
1818	33.54
1819	33.54
1820	33.54
1821	33.54
1822	33.54
1823	33.54
1824	33.54
1825	33.54
1826	33.54
1827	33.54
1828	33.54
1829	33.54
1830	33.54
1831	33.54
1832	33.54
1833	33.54
1834	33.54
1835	33.54
1836	33.54
1837	33.54
1838	33.54
1839	33.54
1840	33.54
1841	33.54
1842	33.54
1843	33.54
1844	33.54
1845	33.54
1846	33.54
1847	33.54
1848	33.54
1849	33.54
1850	33.54
1851	33.54
1852	33.54
1853	33.54
1854	33.54
1855	33.54
1856	33.54
1857	33.54
1858	33.54
1859	33.54
1860	33.54
1861	33.54
1862	33.54
1863	33.54
1864	33.54
1865	33.54
1866	33.54
1867	33.54
1868	33.54
1869	33.54
1870	33.54
1871	33.54
1872	33.55
1873	33.55
1874	33.56
1875	33.56
1876	33.57
1877	33.57
1878	33.58
1879	33.58
1880	33.59
1881	33.59
1882	33.6
1883	33.6
1884	33.61
1885	33.61
1886	33.62
1887	33.62
1888	33.63
1889	33.63
1890	33.64
1891	33.64
1892	33.65
1893	33.65
1894	33.65
1895	33.66
1896	33.66
1897	33.67
1898	33.67
1899	33.68
1900	33.68
1901	33.69
1902	33.69
1903	33.7
1904	33.7
1905	33.71
1906	33.71
1907	33.72
1908	33.72
1909	33.73
1910	33.73
1911	33.74
1912	33.74
1913	33.75
1914	33.75
1915	33.76
1916	33.76
1917	33.76
1918	21.9
1919	33.77
1920	33.78
1921	33.78
1922	34.61
1923	35.46
1924	36.3
1925	37.14
1926	37.97
1927	38.81
1928	39.66
1929	40.5
1930	41.33
1931	42.17
1932	43.02
1933	43.86
1934	44.69
1935	45.54
1936	46.38
1937	47.23
1938	48.06
1939	48.91
1940	49.75
1941	50.6
1942	51.44
1943	52.28
1944	53.12
1945	53.97
1946	54.82
1947	55.65
1948	56.5
1949	57.35
1950	58.2
1951	58.46
1952	58.96
1953	59.48
1954	59.98
1955	60.48
1956	60.98
1957	61.47
1958	61.97
1959	62.44
1960	62.91
1961	63.37
1962	63.81
1963	64.23
1964	64.63
1965	65.02
1966	65.39
1967	65.77
1968	66.12
1969	66.48
1970	66.84
1971	67.23
1972	67.62
1973	68.05
1974	68.25
1975	68.42
1976	68.62
1977	68.97
1978	69.35
1979	69.98
1980	70.57
1981	71.07
1982	71.54
1983	72.06
1984	72.26
1985	72.48
1986	72.8
1987	73.12
1988	73.32
1989	73.5
1990	73.76
1991	73.95
1992	74.09
1993	74.17
1994	74.28
1995	74.37
1996	74.38
1997	74.75
1998	74.95
1999	74.88
2000	74.74
2001	75.08
2002	75.32
2003	75.54
2004	75.66
2005	75.94
2006	76.05
2007	76.43
2008	76.62
2009	76.86
2010	76.85
2011	76.93
2012	77.05
2013	77.28
2014	77.11
2015	77.22
2016	77.28
2017	77.44
2018	77.6