Year	Years
1800	35.18
1801	35.18
1802	35.18
1803	35.18
1804	35.18
1805	35.18
1806	35.18
1807	35.18
1808	35.18
1809	35.18
1810	35.18
1811	35.18
1812	35.18
1813	35.18
1814	35.18
1815	35.18
1816	35.18
1817	35.18
1818	35.18
1819	35.18
1820	35.18
1821	35.18
1822	35.18
1823	35.18
1824	35.18
1825	35.18
1826	35.18
1827	35.18
1828	35.18
1829	35.18
1830	35.18
1831	35.18
1832	35.18
1833	35.18
1834	35.18
1835	35.18
1836	35.18
1837	35.18
1838	35.18
1839	35.18
1840	35.18
1841	35.18
1842	35.18
1843	35.18
1844	35.18
1845	35.18
1846	35.18
1847	35.18
1848	35.18
1849	35.18
1850	35.18
1851	35.18
1852	35.18
1853	35.18
1854	35.18
1855	35.18
1856	35.18
1857	35.18
1858	35.18
1859	35.18
1860	35.18
1861	35.18
1862	35.18
1863	35.18
1864	35.18
1865	35.18
1866	35.18
1867	35.18
1868	35.18
1869	35.18
1870	35.18
1871	35.17
1872	35.17
1873	35.16
1874	35.16
1875	35.15
1876	35.14
1877	35.14
1878	35.13
1879	35.13
1880	35.12
1881	35.11
1882	35.11
1883	35.1
1884	35.1
1885	35.09
1886	35.08
1887	35.08
1888	35.07
1889	35.07
1890	35.06
1891	35.05
1892	35.05
1893	35.04
1894	35.04
1895	35.03
1896	35.02
1897	35.02
1898	35.01
1899	35.01
1900	35
1901	34.99
1902	34.99
1903	34.98
1904	34.98
1905	34.97
1906	34.97
1907	34.96
1908	34.95
1909	34.95
1910	34.94
1911	34.94
1912	34.93
1913	34.92
1914	34.92
1915	34.91
1916	34.91
1917	34.9
1918	22.63
1919	34.89
1920	34.88
1921	34.88
1922	35.69
1923	36.5
1924	37.31
1925	38.13
1926	38.95
1927	39.75
1928	40.57
1929	41.38
1930	42.2
1931	43
1932	43.81
1933	44.63
1934	45.44
1935	46.25
1936	47.06
1937	47.87
1938	48.68
1939	49.49
1940	50.3
1941	51.11
1942	51.92
1943	52.73
1944	53.53
1945	54.34
1946	55.15
1947	55.96
1948	56.76
1949	57.57
1950	58.38
1951	58.58
1952	58.99
1953	59.39
1954	59.79
1955	60.17
1956	60.53
1957	60.9
1958	61.25
1959	61.59
1960	61.92
1961	62.24
1962	62.56
1963	62.86
1964	63.17
1965	63.46
1966	63.74
1967	64.03
1968	64.29
1969	64.57
1970	64.82
1971	65.29
1972	65.69
1973	66.28
1974	66.67
1975	66.75
1976	67.11
1977	67.35
1978	67.56
1979	67.8
1980	68.05
1981	68.29
1982	68.58
1983	68.91
1984	69.22
1985	69.18
1986	69.34
1987	69.59
1988	69.95
1989	70.27
1990	70.54
1991	70.8
1992	70.77
1993	70.88
1994	70.64
1995	70.57
1996	70.71
1997	70.82
1998	70.96
1999	71.1
2000	71.28
2001	71.47
2002	71.64
2003	72.16
2004	72.74
2005	72.98
2006	73.32
2007	73.63
2008	73.71
2009	73.79
2010	73.79
2011	73.76
2012	73.69
2013	73.7
2014	73.77
2015	73.63
2016	73.81
2017	73.96
2018	74.1