Year	Years
1800	439.8
1801	439.8
1802	439.8
1803	439.8
1804	439.8
1805	439.8
1806	439.8
1807	439.8
1808	439.8
1809	439.8
1810	439.8
1811	439.8
1812	439.8
1813	439.8
1814	439.8
1815	439.8
1816	439.8
1817	439.8
1818	439.8
1819	439.8
1820	439.8
1821	439.8
1822	439.8
1823	439.8
1824	439.8
1825	439.8
1826	439.8
1827	439.8
1828	439.8
1829	439.8
1830	439.8
1831	439.8
1832	439.8
1833	439.8
1834	439.8
1835	439.8
1836	439.8
1837	439.8
1838	439.8
1839	439.8
1840	439.8
1841	439.8
1842	439.8
1843	439.8
1844	439.8
1845	439.8
1846	439.8
1847	439.8
1848	439.8
1849	439.8
1850	439.8
1851	439.8
1852	439.8
1853	439.8
1854	439.8
1855	439.8
1856	439.8
1857	439.8
1858	439.8
1859	439.8
1860	439.8
1861	439.8
1862	439.8
1863	439.8
1864	439.8
1865	439.8
1866	439.8
1867	439.8
1868	439.8
1869	439.8
1870	439.8
1871	439.8
1872	439.8
1873	439.8
1874	439.8
1875	439.8
1876	439.8
1877	439.8
1878	439.8
1879	439.8
1880	439.8
1881	439.8
1882	439.8
1883	439.8
1884	439.8
1885	439.8
1886	439.8
1887	439.8
1888	439.8
1889	439.8
1890	439.8
1891	439.8
1892	439.8
1893	439.8
1894	439.8
1895	439.8
1896	439.7
1897	439.6
1898	439.4
1899	439.1
1900	438.8
1901	438.5
1902	438
1903	437.5
1904	436.9
1905	436.3
1906	435.5
1907	434.8
1908	433.9
1909	433
1910	432
1911	431
1912	430
1913	429
1914	427.9
1915	426.9
1916	425.9
1917	424.8
1918	423.8
1919	422.8
1920	421.7
1921	420.7
1922	419.7
1923	418.6
1924	417.6
1925	416.6
1926	415.5
1927	414.5
1928	413.5
1929	412.4
1930	411.4
1931	410.4
1932	409.4
1933	408.3
1934	407.3
1935	406.2
1936	405.2
1937	404.2
1938	403.1
1939	402.1
1940	401.1
1961	375.1
1962	372.3
1963	369
1964	366
1965	363.1
1966	360
1967	356.4
1968	352.8
1969	348.6
1970	343.6
1971	337.9
1972	331.2
1973	323.4
1974	315
1975	306.1
1976	296.9
1977	287.3
1978	277.6
1979	268.2
1980	260.3
1981	254
1982	250
1983	248.8
1984	249.8
1985	251.7
1986	253.6
1987	254.3
1988	253
1989	249.8
1990	245.3
1991	239.4
1992	233.2
1993	226.7
1994	220.5
1995	214.1
1996	207.8
1997	201.1
1998	193.4
1999	184.5
2000	174.2
2001	162.9
2002	151.5
2003	140.5
2004	130.1
2005	120.7
2006	111.9
2007	103.7
2008	95.7
2009	88.5
2010	82.7
2011	76.7
2012	70.5
2013	67.9