Year	Years
1800	30.5
1801	30.5
1802	30.5
1803	30.5
1804	30.5
1805	30.5
1806	30.5
1807	30.5
1808	30.5
1809	30.5
1810	30.5
1811	30.5
1812	30.5
1813	30.5
1814	30.5
1815	30.5
1816	30.5
1817	30.5
1818	30.5
1819	30.5
1820	30.5
1821	30.5
1822	30.5
1823	30.5
1824	30.5
1825	30.5
1826	30.5
1827	30.5
1828	30.5
1829	30.5
1830	30.5
1831	30.5
1832	30.5
1833	30.5
1834	30.5
1835	30.5
1836	30.5
1837	30.5
1838	30.5
1839	30.5
1840	30.5
1841	30.5
1842	30.5
1843	30.5
1844	30.5
1845	30.5
1846	30.5
1847	30.5
1848	30.5
1849	30.5
1850	30.5
1851	30.5
1852	30.5
1853	30.5
1854	30.5
1855	30.5
1856	30.5
1857	30.5
1858	30.5
1859	30.5
1860	30.5
1861	30.5
1862	30.5
1863	30.5
1864	30.5
1865	30.5
1866	30.5
1867	30.5
1868	30.5
1869	30.5
1870	30.5
1871	30.54
1872	30.58
1873	30.62
1874	30.66
1875	30.7
1876	30.75
1877	30.79
1878	30.83
1879	30.87
1880	30.91
1881	30.95
1882	30.99
1883	31.03
1884	31.07
1885	31.11
1886	31.15
1887	31.19
1888	31.24
1889	31.28
1890	31.32
1891	31.36
1892	31.4
1893	31.44
1894	31.48
1895	31.52
1896	31.56
1897	31.6
1898	31.64
1899	31.68
1900	31.73
1901	31.77
1902	31.81
1903	31.85
1904	31.89
1905	31.93
1906	31.97
1907	32.01
1908	32.05
1909	32.09
1910	32.13
1911	32.17
1912	32.22
1913	32.26
1914	32.3
1915	32.34
1916	32.38
1917	32.42
1918	13.53
1919	32.5
1920	32.54
1921	32.58
1922	32.62
1923	32.66
1924	32.71
1925	32.75
1926	32.79
1927	32.83
1928	32.87
1929	32.91
1930	32.95
1931	32.99
1932	33.03
1933	33.07
1934	33.11
1935	33.15
1936	33.2
1937	33.24
1938	33.28
1939	33.32
1940	33.36
1941	33.4
1942	33.44
1943	33.48
1944	33.52
1945	33.56
1946	34.67
1947	35.78
1948	36.9
1949	38.02
1950	39.14
1951	39.45
1952	40.04
1953	40.62
1954	41.22
1955	41.8
1956	42.4
1957	43
1958	43.58
1959	44.18
1960	44.78
1961	45.37
1962	45.96
1963	46.55
1964	47.15
1965	47.74
1966	48.34
1967	48.93
1968	49.55
1969	50.15
1970	50.76
1971	51.18
1972	51.81
1973	52.43
1974	52.82
1975	53.1
1976	53.38
1977	53.89
1978	54.27
1979	54.68
1980	54.87
1981	54.78
1982	54.31
1983	54.22
1984	54.15
1985	54.17
1986	53.98
1987	54.11
1988	54.58
1989	55.13
1990	55.59
1991	55.83
1992	56.06
1993	56.06
1994	56.5
1995	56.85
1996	57.19
1997	57.47
1998	57.8
1999	58.23
2000	58.46
2001	58.98
2002	59.13
2003	59.33
2004	59.6
2005	60.08
2006	60.4
2007	60.65
2008	60.76
2009	60.76
2010	60.84
2011	61.11
2012	61.36
2013	61.66
2014	61.96
2015	62.31
2016	62.69
2017	63.05
2018	63.4