Year	Years
1800	471.4
1801	471.4
1802	471.4
1803	471.4
1804	471.4
1805	471.4
1806	471.4
1807	471.4
1808	471.4
1809	471.4
1810	471.4
1811	471.4
1812	471.4
1813	471.4
1814	471.4
1815	471.4
1816	471.4
1817	471.4
1818	471.4
1819	471.4
1820	471.4
1821	471.4
1822	471.4
1823	471.4
1824	471.4
1825	471.4
1826	471.4
1827	471.4
1828	471.4
1829	471.4
1830	471.4
1831	471.4
1832	471.4
1833	471.4
1834	471.4
1835	471.4
1836	471.4
1837	471.4
1838	471.4
1839	471.4
1840	471.4
1841	471.4
1842	471.4
1843	471.4
1844	471.4
1845	471.4
1846	471.4
1847	471.4
1848	471.4
1849	471.4
1850	471.4
1851	471.4
1852	471.4
1853	471.4
1854	471.4
1855	471.4
1856	471.4
1857	471.4
1858	471.4
1859	471.4
1860	471.4
1861	471.4
1862	471.4
1863	471.4
1864	471.4
1865	471.4
1866	471.4
1867	471.4
1868	471.4
1869	471.4
1870	471.4
1871	471.4
1872	471.4
1873	471.4
1874	471.4
1875	471.4
1876	471.4
1877	471.4
1878	471.4
1879	471.4
1880	471.4
1881	471.4
1882	471.4
1883	471.4
1884	471.4
1885	471.4
1886	471.4
1887	471.4
1888	471.4
1889	471.4
1890	471.4
1891	471.4
1892	471.4
1893	471.4
1894	471.4
1895	471.3
1896	471.2
1897	471.1
1898	470.9
1899	470.7
1900	470.4
1901	469.9
1902	469.5
1903	468.9
1904	468.3
1905	467.6
1906	466.8
1907	466
1908	465.1
1909	464.1
1910	463
1911	462
1912	460.9
1913	459.8
1914	458.7
1915	457.6
1916	456.4
1917	455.3
1918	454.2
1919	453.1
1920	452
1921	450.9
1922	449.8
1923	448.7
1924	447.6
1925	446.5
1926	438.8
1927	431.1
1928	422.4
1929	414.9
1930	407.7
1931	400.5
1932	392.2
1933	385.2
1934	378.3
1935	371.5
1936	363.7
1937	357.1
1938	350.6
1939	344.2
1940	336.7
1950	256.1
1951	249.9
1952	243.8
1953	238.3
1954	233
1955	228.2
1956	223.7
1957	219.4
1958	215.9
1959	212.8
1960	210.3
1961	208.3
1962	206.7
1963	205.8
1964	205.1
1965	204.4
1966	204.1
1967	203.7
1968	203.2
1969	202.3
1970	201.1
1971	199.4
1972	197.1
1973	193.9
1974	190
1975	185.5
1976	180.9
1977	176.5
1978	172.6
1979	169.7
1980	167.7
1981	166
1982	164.4
1983	162.3
1984	159.3
1985	155.3
1986	150.4
1987	144.8
1988	139
1989	133.3
1990	128.2
1991	123.9
1992	120.5
1993	117.8
1994	115.8
1995	114
1996	112.1
1997	110
1998	107.4
1999	104.5
2000	101.3
2001	98
2002	94.9
2003	92.2
2004	90.1
2005	88.3
2006	87
2007	86
2008	85.2
2009	84.2
2010	83.2
2011	81.7
2012	80.2
2013	78.4