Year	Years
1800	507.9
1801	507.9
1802	507.9
1803	507.9
1804	507.9
1805	507.9
1806	507.9
1807	507.9
1808	507.9
1809	507.9
1810	507.9
1811	507.9
1812	507.9
1813	507.9
1814	507.9
1815	507.9
1816	507.9
1817	507.9
1818	507.9
1819	507.9
1820	507.9
1821	507.9
1822	507.9
1823	507.9
1824	507.9
1825	507.9
1826	507.9
1827	507.9
1828	507.9
1829	507.9
1830	507.9
1831	507.9
1832	507.9
1833	507.9
1834	507.9
1835	507.9
1836	507.9
1837	507.9
1838	507.9
1839	507.9
1840	507.9
1841	507.9
1842	507.9
1843	507.9
1844	507.9
1845	507.9
1846	507.9
1847	507.9
1848	507.9
1849	507.9
1850	507.9
1851	507.9
1852	507.9
1853	507.9
1854	507.9
1855	507.9
1856	507.9
1857	507.9
1858	507.9
1859	507.9
1860	507.9
1861	507.9
1862	507.9
1863	507.9
1864	507.9
1865	507.9
1866	507.9
1867	507.9
1868	507.9
1869	507.9
1870	507.9
1871	507.9
1872	507.9
1873	507.9
1874	507.9
1875	507.9
1876	507.9
1877	507.9
1878	507.9
1879	507.9
1880	507.9
1881	507.9
1882	507.9
1883	507.9
1884	507.9
1885	507.9
1886	507.9
1887	507.9
1888	507.9
1889	507.9
1890	507.9
1891	507.9
1892	507.9
1893	507.9
1894	507.9
1895	507.8
1896	507.8
1897	507.6
1898	507.4
1899	507.1
1900	506.8
1901	506.4
1902	505.8
1903	505.2
1904	504.6
1905	503.8
1906	503
1907	502.1
1908	501.1
1909	500
1910	498.9
1911	497.7
1912	496.6
1913	495.4
1914	494.2
1915	493
1916	491.8
1917	490.6
1918	489.4
1919	488.2
1920	487
1921	485.8
1922	484.6
1923	487.8
1924	490.9
1925	494.1
1926	498.7
1927	501.9
1928	496.2
1929	492.1
1930	486.5
1931	482.4
1932	478.3
1933	472.9
1934	468.9
1935	463.6
1936	459.7
1937	454.4
1938	449.2
1939	444.1
1940	439
1950	319.8
1951	305.4
1952	291.6
1953	278
1954	264.8
1955	252.2
1956	240.3
1957	228.9
1958	218.2
1959	208.2
1960	199
1961	190.8
1962	183.4
1963	176.8
1964	171.2
1965	166.5
1966	162.4
1967	158.6
1968	155
1969	151.5
1970	147.9
1971	144.2
1972	140.5
1973	136.7
1974	132.7
1975	128.6
1976	124.4
1977	120.2
1978	116.1
1979	112.2
1980	108.5
1981	105.2
1982	102.3
1983	99.8
1984	97.7
1985	96.3
1986	95.5
1987	95.4
1988	95.9
1989	97
1990	98.7
1991	101
1992	103.7
1993	106.5
1994	109.2
1995	111.4
1996	112.9
1997	113.6
1998	113.3
1999	112.4
2000	110.9
2001	108.8
2002	106.5
2003	103.8
2004	101
2005	97.8
2006	94.1
2007	90.5
2008	86.4
2009	83.1
2010	79.5
2011	75.8
2012	73.1
2013	70.7