Year	Years
1800	421.3
1801	421.3
1802	421.3
1803	421.3
1804	421.3
1805	421.3
1806	421.3
1807	421.3
1808	421.3
1809	421.3
1810	421.3
1811	421.3
1812	421.3
1813	421.3
1814	421.3
1815	421.3
1816	421.3
1817	421.3
1818	421.3
1819	421.3
1820	421.3
1821	421.3
1822	421.3
1823	421.3
1824	421.3
1825	421.3
1826	421.3
1827	421.3
1828	421.3
1829	421.3
1830	421.3
1831	421.3
1832	421.3
1833	421.3
1834	421.3
1835	421.3
1836	421.3
1837	421.3
1838	421.3
1839	421.3
1840	421.3
1841	421.3
1842	421.3
1843	421.3
1844	421.3
1845	421.3
1846	421.3
1847	421.3
1848	421.3
1849	421.3
1850	421.3
1851	421.3
1852	421.3
1853	421.3
1854	421.3
1855	421.3
1856	421.3
1857	421.3
1858	421.3
1859	421.3
1860	421.3
1861	421.3
1862	421.3
1863	421.3
1864	421.3
1865	421.3
1866	421.3
1867	421.3
1868	421.3
1869	421.3
1870	421.3
1871	421.3
1872	421.3
1873	421.3
1874	421.3
1875	421.3
1876	421.3
1877	421.3
1878	421.3
1879	421.3
1880	421.3
1881	421.3
1882	421.3
1883	421.3
1884	421.3
1885	421.3
1886	421.3
1887	421.3
1888	421.3
1889	421.3
1890	421.3
1891	421.3
1892	421.3
1893	421.3
1894	421.3
1895	421.3
1896	421.2
1897	421.1
1898	421
1899	420.7
1900	420.4
1901	420.1
1902	419.6
1903	419.1
1904	418.6
1905	418
1906	417.3
1907	416.5
1908	415.7
1909	414.8
1910	413.9
1911	412.9
1912	411.9
1913	411
1914	410
1915	409
1916	408
1917	407
1918	406
1919	405
1920	404
1921	403.1
1922	402.1
1923	401.1
1924	400.1
1925	399.1
1926	398.1
1927	397.1
1928	396.1
1929	395.1
1930	394.1
1931	393.2
1932	392.2
1933	391.2
1934	390.2
1935	389.2
1936	377.6
1937	367.3
1938	356.2
1939	345.3
1940	334.6
1950	276.6
1951	262.3
1952	248.6
1953	235.4
1954	222.7
1955	210.6
1956	198.8
1957	187.7
1958	177
1959	166.7
1960	157.1
1961	148
1962	139.5
1963	131.5
1964	124.1
1965	117.3
1966	110.9
1967	105
1968	99.6
1969	94.4
1970	89.7
1971	85.3
1972	81.1
1973	77.2
1974	73.5
1975	70.1
1976	66.8
1977	63.7
1978	60.8
1979	58.1
1980	55.5
1981	53
1982	50.7
1983	48.5
1984	46.4
1985	44.4
1986	42.6
1987	40.9
1988	39.3
1989	37.9
1990	36.7
1991	35.5
1992	34.5
1993	33.5
1994	32.6
1995	31.8
1996	30.9
1997	30.1
1998	29.4
1999	28.6
2000	27.8
2001	27
2002	26.2
2003	25.4
2004	24.6
2005	23.9
2006	23.1
2007	22.4
2008	21.8
2009	21.1
2010	20.5
2011	19.9
2012	19.3
2013	18.7