Year	Years
1800	443.8
1801	443.8
1802	443.8
1803	443.8
1804	443.8
1805	443.8
1806	443.8
1807	443.8
1808	443.8
1809	443.8
1810	443.8
1811	443.8
1812	443.8
1813	443.8
1814	443.8
1815	443.8
1816	443.8
1817	443.8
1818	443.8
1819	443.8
1820	443.8
1821	443.8
1822	443.8
1823	443.8
1824	443.8
1825	443.8
1826	443.8
1827	443.8
1828	443.8
1829	443.8
1830	443.8
1831	443.8
1832	443.8
1833	443.8
1834	443.8
1835	443.8
1836	443.8
1837	443.8
1838	443.8
1839	443.8
1840	443.8
1841	443.8
1842	443.8
1843	443.8
1844	443.8
1845	443.8
1846	443.8
1847	443.8
1848	443.8
1849	443.8
1850	443.8
1851	443.8
1852	443.8
1853	443.8
1854	443.8
1855	443.8
1856	443.8
1857	443.8
1858	443.8
1859	443.8
1860	443.8
1861	443.8
1862	443.8
1863	443.8
1864	443.8
1865	443.8
1866	443.8
1867	443.8
1868	443.8
1869	443.8
1870	443.8
1871	443.8
1872	443.8
1873	443.8
1874	443.8
1875	443.8
1876	443.8
1877	443.8
1878	443.8
1879	443.8
1880	443.8
1881	443.8
1882	443.8
1883	443.8
1884	443.8
1885	443.8
1886	443.8
1887	443.8
1888	443.8
1889	443.8
1890	443.8
1891	443.8
1892	443.8
1893	443.8
1894	443.8
1895	443.7
1896	443.7
1897	443.6
1898	443.4
1899	443.1
1900	442.8
1901	442.4
1902	442
1903	441.5
1904	440.9
1905	440.2
1906	439.5
1907	438.7
1908	437.8
1909	436.9
1910	435.9
1911	434.9
1912	433.9
1913	432.9
1914	431.8
1915	430.8
1916	429.7
1917	428.7
1918	427.6
1919	426.6
1920	425.6
1921	424.5
1922	423.5
1923	422.4
1924	421.4
1925	420.4
1926	419.3
1927	418.3
1928	417.2
1929	416.2
1930	415.1
1931	414.1
1932	413.1
1933	412
1934	411
1935	409.9
1936	408.9
1937	407.9
1938	406.8
1939	405.8
1940	404.7
1941	403.7
1942	402.6
1943	401.6
1944	400.6
1945	399.5
1946	398.5
1947	389.1
1948	381
1949	371.9
1959	271
1960	266.5
1961	262.1
1962	257.4
1963	252.6
1964	247.3
1965	241.9
1966	236.4
1967	230.9
1968	225.7
1969	221
1970	216.4
1971	212.2
1972	208.3
1973	204.6
1974	201.3
1975	198.3
1976	195.2
1977	192.4
1978	189.7
1979	187.2
1980	185
1981	183.1
1982	181.6
1983	180.5
1984	179.9
1985	179.4
1986	178.8
1987	178.3
1988	177.9
1989	177.4
1990	176.9
1991	176.4
1992	175.9
1993	175.5
1994	175.2
1995	175.1
1996	175
1997	174.9
1998	174.8
1999	174.5
2000	174.1
2001	173.5
2002	172.8
2003	171.7
2004	170.5
2005	168.9
2006	166.7
2007	164.1
2008	160.8
2009	156.9
2010	152.6
2011	147.6
2012	142.7
2013	139.2