Year	Years
1800	420
1801	420
1802	420
1803	420
1804	420
1805	420
1806	420
1807	420
1808	420
1809	420
1810	420
1811	420
1812	420
1813	420
1814	420
1815	420
1816	420
1817	420
1818	420
1819	420
1820	420
1821	420
1822	420
1823	420
1824	420
1825	420
1826	420
1827	420
1828	420
1829	420
1830	420
1831	420
1832	420
1833	420
1834	420
1835	420
1836	420
1837	420
1838	420
1839	420
1840	420
1841	420
1842	420
1843	420
1844	420
1845	420
1846	420
1847	420
1848	420
1849	420
1850	420
1851	420
1852	420
1853	420
1854	420
1855	420
1856	420
1857	420
1858	420
1859	420
1860	420
1861	420
1862	420
1863	420
1864	420
1865	420
1866	420
1867	420
1868	420
1869	420
1870	420
1871	420
1872	420
1873	420
1874	420
1875	420
1876	420
1877	420
1878	420
1879	420
1880	420
1881	420
1882	420
1883	420
1884	420
1885	420
1886	420
1887	420
1888	420
1889	420
1890	420
1891	420
1892	420
1893	420
1894	420
1895	420
1896	419.9
1897	419.8
1898	419.7
1899	419.4
1900	419.1
1901	418.8
1902	418.3
1903	417.9
1904	417.3
1905	416.7
1906	416
1907	415.2
1908	414.4
1909	413.5
1910	412.6
1911	411.6
1912	410.7
1913	409.7
1914	408.7
1915	407.7
1916	406.7
1917	405.8
1918	404.8
1919	403.8
1920	402.8
1921	401.8
1922	400.8
1923	399.8
1924	398.9
1925	397.9
1926	396.9
1927	395.9
1928	394.9
1929	393.9
1930	392.9
1931	387.1
1932	381.4
1933	376.9
1934	371.3
1935	365.8
1936	360.2
1937	354.8
1938	350.6
1939	345.3
1940	340
1941	334.8
1942	329.6
1943	325.6
1944	320.5
1954	250.1
1955	244.5
1956	238.9
1957	233.4
1958	227.6
1959	221.5
1960	216.1
1961	211.9
1962	208.8
1963	206.5
1964	205.4
1965	205.2
1966	206
1967	207.6
1968	210.1
1969	213.1
1970	216.6
1971	220.3
1972	224.3
1973	229.6
1974	235.9
1975	241.8
1976	245.9
1977	246.2
1978	240.8
1979	228.9
1980	214
1981	198
1982	183.3
1983	171.9
1984	164
1985	158.4
1986	153.9
1987	150.6
1988	148.9
1989	149.2
1990	151.8
1991	156.8
1992	163.5
1993	179
1994	287.5
1995	253.2
1996	190.7
1997	215.7
1998	230.9
1999	198.9
2000	181.9
2001	167.5
2002	151.2
2003	135.2
2004	120.1
2005	106.4
2006	94.6
2007	84.3
2008	75.8
2009	69.1
2010	63.6
2011	58.7
2012	54.9
2013	52