Year	Years
1800	29.69
1801	29.69
1802	29.69
1803	29.69
1804	29.69
1805	29.69
1806	29.69
1807	29.69
1808	29.69
1809	29.69
1810	29.69
1811	29.69
1812	29.69
1813	29.69
1814	29.69
1815	29.69
1816	29.69
1817	29.69
1818	29.69
1819	29.69
1820	29.69
1821	29.69
1822	29.69
1823	29.69
1824	29.69
1825	29.69
1826	29.69
1827	29.69
1828	29.69
1829	29.69
1830	29.69
1831	29.69
1832	29.69
1833	29.69
1834	29.69
1835	29.69
1836	29.69
1837	29.69
1838	29.69
1839	29.69
1840	29.69
1841	29.69
1842	29.69
1843	29.69
1844	29.69
1845	29.69
1846	29.69
1847	29.69
1848	29.69
1849	29.69
1850	29.69
1851	29.69
1852	29.69
1853	29.69
1854	29.69
1855	29.69
1856	29.69
1857	29.69
1858	29.69
1859	29.69
1860	29.69
1861	29.69
1862	29.69
1863	29.69
1864	29.69
1865	29.69
1866	29.69
1867	29.69
1868	29.69
1869	29.69
1870	29.69
1871	29.69
1872	29.69
1873	31.6
1874	31.75
1875	31.31
1876	33.6
1877	34.88
1878	34.32
1879	33.95
1880	32.73
1881	34.19
1882	34.28
1883	35.17
1884	36.59
1885	36.82
1886	35.09
1887	35.96
1888	36.91
1889	39.04
1890	38.49
1891	38.45
1892	38.83
1893	39.78
1894	39.9
1895	39.59
1896	40.68
1897	43.27
1898	42.31
1899	43.65
1900	41.64
1901	43.5
1902	42.97
1903	43.13
1904	44.41
1905	43.92
1906	45.06
1907	45.42
1908	43.16
1909	44.64
1910	46.72
1911	44.74
1912	48.95
1913	48.43
1914	49.86
1915	42.31
1916	39.24
1917	37.66
1918	25.6
1919	42.07
1920	45.47
1921	49.21
1922	49.97
1923	51.41
1924	51.47
1925	51.27
1926	50.92
1927	52.53
1928	52.62
1929	52.24
1930	55.15
1931	54.73
1932	54.72
1933	56.24
1934	56.8
1935	56.16
1936	56.69
1937	55.43
1938	56.07
1939	57.58
1940	56.89
1941	54.56
1942	52.39
1943	49.13
1944	52.28
1945	54.72
1946	58.9
1947	61.11
1948	63.37
1949	64.03
1950	65.69
1951	65.23
1952	65.86
1953	66.49
1954	67.81
1955	68.16
1956	67.55
1957	67.72
1958	68.78
1959	69.22
1960	69.11
1961	69.75
1962	69.14
1963	69.25
1964	70.3
1965	70.17
1966	70.91
1967	70.95
1968	70.77
1969	70.79
1970	71.55
1971	71.78
1972	72.04
1973	72.19
1974	72.62
1975	72.84
1976	73.12
1977	73.47
1978	73.74
1979	74.04
1980	74.07
1981	74.51
1982	74.81
1983	74.98
1984	75.37
1985	75.63
1986	75.94
1987	76.24
1988	76.49
1989	76.79
1990	76.98
1991	77.14
1992	77.36
1993	77.57
1994	77.79
1995	78.06
1996	78.27
1997	78.62
1998	78.89
1999	79.19
2000	79.52
2001	79.84
2002	80.08
2003	80.18
2004	80.63
2005	80.82
2006	80.99
2007	81.17
2008	81.37
2009	81.48
2010	81.69
2011	81.83
2012	81.93
2013	82.15
2014	82.21
2015	82.25
2016	82.27
2017	82.45
2018	82.62