Year	Years
1800	24.9
1801	24.9
1802	24.9
1803	24.9
1804	24.9
1805	24.9
1806	24.9
1807	24.9
1808	24.9
1809	24.9
1810	24.9
1811	24.9
1812	24.9
1813	24.9
1814	24.9
1815	24.9
1816	24.9
1817	24.9
1818	24.9
1819	24.9
1820	24.9
1821	24.9
1822	24.9
1823	24.9
1824	24.9
1825	24.9
1826	24.9
1827	24.9
1828	24.9
1829	24.9
1830	24.9
1831	24.9
1832	24.9
1833	24.9
1834	24.9
1835	24.9
1836	24.9
1837	24.9
1838	24.9
1839	24.9
1840	24.9
1841	24.9
1842	24.9
1843	24.9
1844	24.9
1845	24.9
1846	24.9
1847	24.9
1848	24.9
1849	24.9
1850	24.9
1851	24.9
1852	24.9
1853	24.9
1854	24.9
1855	24.9
1856	24.9
1857	24.9
1858	24.9
1859	24.9
1860	24.9
1861	24.9
1862	24.9
1863	24.9
1864	24.9
1865	24.9
1866	24.9
1867	24.9
1868	24.9
1869	24.9
1870	24.9
1871	24.92
1872	24.93
1873	24.95
1874	24.97
1875	24.98
1876	25
1877	25.02
1878	25.03
1879	25.05
1880	25.07
1881	25.08
1882	25.1
1883	25.12
1884	25.14
1885	25.15
1886	25.17
1887	25.19
1888	25.2
1889	25.22
1890	8.11
1891	25.25
1892	25.27
1893	25.29
1894	25.3
1895	25.32
1896	25.34
1897	25.35
1898	25.37
1899	25.39
1900	25.4
1901	25.42
1902	25.44
1903	25.45
1904	25.47
1905	25.49
1906	25.51
1907	25.52
1908	25.54
1909	25.56
1910	25.57
1911	25.59
1912	25.61
1913	25.62
1914	25.64
1915	25.66
1916	25.67
1917	25.69
1918	25.71
1919	25.72
1920	25.74
1921	25.76
1922	25.77
1923	25.79
1924	25.81
1925	25.82
1926	25.84
1927	25.86
1928	25.88
1929	25.89
1930	25.91
1931	25.93
1932	25.94
1933	25.96
1934	25.98
1935	27.15
1936	28.32
1937	29.5
1938	30.68
1939	31.85
1940	33.03
1941	34.22
1942	31.46
1943	28.33
1944	32.55
1945	28.37
1946	39.74
1947	41.24
1948	42.53
1949	43.71
1950	44.91
1951	45.18
1952	45.69
1953	46.19
1954	46.7
1955	47.21
1956	47.72
1957	48.23
1958	48.73
1959	49.25
1960	49.76
1961	50.27
1962	50.78
1963	51.29
1964	51.81
1965	52.32
1966	52.84
1967	53.35
1968	53.86
1969	54.38
1970	54.89
1971	55.15
1972	55.51
1973	56.03
1974	56.95
1975	57.74
1976	58.12
1977	57.9
1978	58.73
1979	58.91
1980	58.77
1981	58.61
1982	58.45
1983	58.26
1984	58.1
1985	57.96
1986	57.91
1987	57.85
1988	57.92
1989	58.03
1990	58.2
1991	58.29
1992	58.43
1993	58.43
1994	58.63
1995	58.65
1996	58.98
1997	59.15
1998	59.27
1999	59.35
2000	59.47
2001	59.68
2002	59.81
2003	59.94
2004	60.05
2005	60.18
2006	60.27
2007	60.4
2008	60.52
2009	60.64
2010	60.73
2011	60.83
2012	61.01
2013	61.21
2014	61.42
2015	61.65
2016	61.88
2017	62.06
2018	62.23