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	396.6
1937	387.2
1938	376.8
1939	367.8
1940	358.8
1941	350.1
1942	340.4
1943	332
1944	323.7
1945	315.6
1946	306.5
1955	306.6
1956	281.9
1957	259.2
1958	238
1959	218.5
1960	200.3
1961	183.1
1962	167.3
1963	152.5
1964	138.7
1965	126.1
1966	114.3
1967	103.5
1968	93.7
1969	84.6
1970	76.4
1971	69
1972	62.5
1973	56.6
1974	51.6
1975	47.2
1976	43.4
1977	40.1
1978	37.1
1979	34.5
1980	32.3
1981	30.3
1982	28.7
1983	27.2
1984	26
1985	25
1986	24.2
1987	23.7
1988	23.4
1989	23.2
1990	23
1991	22.6
1992	21.9
1993	20.9
1994	19.6
1995	18.1
1996	16.6
1997	15.3
1998	14.2
1999	13.3
2000	12.7
2001	12.2
2002	11.9
2003	11.6
2004	11.3
2005	10.9
2006	10.4
2007	9.9
2008	9.2
2009	8.5
2010	7.8
2011	7.2
2012	6.6
2013	6.1