Year	Years
1800	409.8
1801	409.8
1802	409.8
1803	409.8
1804	409.8
1805	409.8
1806	409.8
1807	409.8
1808	409.8
1809	409.8
1810	409.8
1811	409.8
1812	409.8
1813	409.8
1814	409.8
1815	409.8
1816	409.8
1817	409.8
1818	409.8
1819	409.8
1820	409.8
1821	409.8
1822	409.8
1823	409.8
1824	409.8
1825	409.8
1826	409.8
1827	409.8
1828	409.8
1829	409.8
1830	409.8
1831	409.8
1832	409.8
1833	409.8
1834	409.8
1835	409.8
1836	409.8
1837	409.8
1838	409.8
1839	409.8
1840	409.8
1841	409.8
1842	409.8
1843	409.8
1844	409.8
1845	409.8
1846	409.8
1847	409.8
1848	409.8
1849	409.8
1850	409.8
1851	409.8
1852	409.8
1853	409.8
1854	409.8
1855	409.8
1856	409.8
1857	409.8
1858	409.8
1859	409.8
1860	409.8
1861	409.8
1862	409.8
1863	409.8
1864	409.8
1865	409.8
1866	409.8
1867	409.8
1868	409.8
1869	409.8
1870	409.8
1871	409.8
1872	409.8
1873	409.8
1874	409.8
1875	409.8
1876	409.8
1877	409.8
1878	409.8
1879	409.8
1880	409.8
1881	409.8
1882	409.8
1883	409.8
1884	409.8
1885	409.8
1886	409.8
1887	409.8
1888	409.8
1889	409.8
1890	409.8
1891	409.8
1892	409.8
1893	409.8
1894	409.8
1895	409.8
1896	409.7
1897	409.6
1898	409.4
1899	409.2
1900	408.9
1901	408.6
1902	411.9
1903	414
1904	417.3
1905	420.5
1906	422.4
1907	425.5
1908	428.6
1909	431.7
1910	433.3
1911	436.3
1912	432.6
1913	429
1914	425.3
1915	421.7
1916	416.8
1917	413.3
1918	409.8
1919	406.3
1920	402.8
1921	399.3
1922	386.2
1923	373.3
1924	359.7
1925	347.5
1926	335.5
1927	323.9
1928	311.4
1929	300.3
1930	289.4
1931	278.8
1932	268.4
1933	257.2
1934	247.2
1935	237.5
1936	238.7
1937	239.9
1938	242
1939	243.2
1940	244.4
1950	140.2
1951	135.8
1952	131.7
1953	127.8
1954	123.9
1955	119.9
1956	115.6
1957	111.1
1958	106.7
1959	102.2
1960	98
1961	94
1962	90.4
1963	87
1964	83.9
1965	81.1
1966	78.6
1967	76.4
1968	74.4
1969	72.8
1970	71.4
1971	70.1
1972	68.8
1973	67.5
1974	65.9
1975	64
1976	61.8
1977	59.3
1978	56.4
1979	53.2
1980	49.8
1981	46.2
1982	42.3
1983	38.2
1984	34.1
1985	30.2
1986	26.9
1987	24.3
1988	22.6
1989	21.7
1990	21.3
1991	21.2
1992	21.2
1993	21.1
1994	20.8
1995	20.2
1996	19.5
1997	18.7
1998	17.9
1999	17.1
2000	16.3
2001	15.6
2002	15.1
2003	14.6
2004	14.1
2005	13.7
2006	13
2007	12.3
2008	11.7
2009	11.2
2010	10.7
2011	10.3
2012	10
2013	9.6