Year	Years
1800	29.4
1801	29.4
1802	29.4
1803	29.4
1804	29.4
1805	29.4
1806	29.4
1807	29.4
1808	29.4
1809	29.4
1810	29.4
1811	29.4
1812	29.4
1813	29.4
1814	29.4
1815	29.4
1816	29.4
1817	29.4
1818	29.4
1819	29.4
1820	29.4
1821	29.4
1822	29.4
1823	29.4
1824	29.4
1825	29.4
1826	29.4
1827	29.4
1828	29.4
1829	29.4
1830	29.4
1831	29.4
1832	29.4
1833	29.4
1834	29.4
1835	29.4
1836	29.4
1837	29.4
1838	29.4
1839	29.4
1840	29.4
1841	29.4
1842	29.4
1843	29.4
1844	29.4
1845	29.4
1846	29.4
1847	29.4
1848	29.4
1849	29.4
1850	29.4
1851	29.4
1852	29.4
1853	29.4
1854	29.4
1855	29.4
1856	29.4
1857	29.4
1858	29.4
1859	29.4
1860	29.4
1861	29.4
1862	29.4
1863	29.4
1864	29.4
1865	29.4
1866	29.4
1867	29.4
1868	29.4
1869	29.4
1870	29.4
1871	29.46
1872	29.53
1873	29.59
1874	29.65
1875	29.72
1876	29.78
1877	29.84
1878	29.91
1879	29.97
1880	30.03
1881	30.1
1882	30.16
1883	30.22
1884	30.29
1885	30.35
1886	30.41
1887	30.48
1888	30.54
1889	30.61
1890	30.67
1891	30.73
1892	30.8
1893	30.86
1894	30.92
1895	30.99
1896	31.05
1897	31.11
1898	31.18
1899	31.24
1900	31.3
1901	31.37
1902	31.43
1903	31.49
1904	31.56
1905	31.62
1906	31.68
1907	31.75
1908	31.81
1909	31.87
1910	31.94
1911	32
1912	32.06
1913	32.13
1914	32.19
1915	32.25
1916	32.32
1917	32.38
1918	17.11
1919	32.51
1920	32.57
1921	32.63
1922	32.7
1923	32.76
1924	32.82
1925	32.89
1926	32.95
1927	33.02
1928	33.08
1929	33.14
1930	33.21
1931	33.27
1932	33.33
1933	33.4
1934	33.46
1935	33.52
1936	33.59
1937	33.65
1938	33.71
1939	33.78
1940	33.84
1941	33.9
1942	33.97
1943	34.03
1944	34.09
1945	34.16
1946	35.1
1947	36.04
1948	37
1949	37.95
1950	38.91
1951	39.21
1952	39.77
1953	40.31
1954	40.86
1955	41.41
1956	41.96
1957	42.51
1958	43.06
1959	43.6
1960	44.16
1961	44.72
1962	45.27
1963	45.84
1964	46.4
1965	46.97
1966	47.54
1967	48.1
1968	48.67
1969	49.23
1970	49.8
1971	49.86
1972	50.08
1973	50.2
1974	47.65
1975	47.94
1976	48.18
1977	50.71
1978	50.7
1979	50.88
1980	50.78
1981	50.77
1982	50.64
1983	50.53
1984	50.58
1985	50.28
1986	50.13
1987	50.63
1988	47.8
1989	50.96
1990	50.66
1991	49.13
1992	50.16
1993	51.51
1994	51.04
1995	51.41
1996	51.28
1997	50.95
1998	51.67
1999	51.82
2000	52.06
2001	52.46
2002	52.73
2003	53.14
2004	53.39
2005	53.9
2006	54.04
2007	54.14
2008	54.76
2009	55.02
2010	53.13
2011	53.4
2012	55.85
2013	56.61
2014	56.94
2015	57.25
2016	57.19
2017	57.61
2018	58.03