Year	Years
1800	456.1
1801	456.1
1802	456.1
1803	456.1
1804	456.1
1805	456.1
1806	456.1
1807	456.1
1808	456.1
1809	456.1
1810	456.1
1811	456.1
1812	456.1
1813	456.1
1814	456.1
1815	456.1
1816	456.1
1817	456.1
1818	456.1
1819	456.1
1820	442.5
1821	429.2
1822	417.4
1823	404.7
1824	392.2
1825	392.2
1826	392.2
1827	392.2
1828	392.2
1829	392.2
1830	392.2
1831	392.2
1832	392.2
1833	392.2
1834	392.2
1835	392.2
1836	392.2
1837	392.2
1838	392.2
1839	392.2
1840	392.2
1841	392.2
1842	392.2
1843	392.2
1844	392.2
1845	392.2
1846	392.2
1847	392.2
1848	392.2
1849	392.2
1850	392.2
1851	392.2
1852	392.2
1853	392.2
1854	392.2
1855	392.2
1856	392.2
1857	392.2
1858	392.2
1859	392.2
1860	392.2
1861	392.2
1862	392.2
1863	392.2
1864	392.2
1865	392.2
1866	392.2
1867	392.2
1868	392.2
1869	392.2
1870	392.2
1871	392.2
1872	392.2
1873	392.2
1874	392.2
1875	392.2
1876	392.2
1877	392.2
1878	392.2
1879	392.2
1880	392.2
1881	392.2
1882	392.2
1883	392.2
1884	392.2
1885	392.2
1886	392.2
1887	392.2
1888	392.2
1889	392.2
1890	392.2
1891	392.2
1892	392.2
1893	392.2
1894	392.2
1895	392.2
1896	392.1
1897	392
1898	391.9
1899	391.6
1900	391.4
1901	391
1902	390.6
1903	390.2
1904	389.6
1905	389.1
1906	388.4
1907	387.7
1908	386.9
1909	386.1
1910	385.3
1911	384.4
1912	383.5
1913	382.6
1914	381.6
1915	380.7
1916	379.8
1917	378.9
1918	377.9
1919	377
1920	376.1
1930	348
1931	322
1932	287.7
1933	273.2
1934	274.7
1935	258.5
1936	279.4
1937	251.5
1938	258.5
1939	207.2
1940	229.6
1943	315.5
1944	462.8
1945	351.2
1946	131.2
1947	125.9
1948	115.4
1949	100.2
1950	117.2
1951	105.2
1952	96.88
1953	84.8
1954	78.1
1955	72
1956	66.5
1957	61.5
1958	56.9
1959	52.3
1960	47.8
1961	43.7
1962	40.5
1963	38.2
1964	36.5
1965	35
1966	33.6
1967	32
1968	30.3
1969	28.7
1970	27.4
1971	26.1
1972	24.3
1973	22
1974	19.7
1975	17.6
1976	16.1
1977	15.2
1978	15.1
1979	15.2
1980	14.8
1981	14.1
1982	13.2
1983	12.3
1984	11.6
1985	10.9
1986	10.4
1987	9.8
1988	9.2
1989	8.4
1990	7.7
1991	6.9
1992	6.3
1993	5.8
1994	5.4
1995	5.2
1996	5
1997	4.8
1998	4.5
1999	4.3
2000	4
2001	3.7
2002	3.4
2003	3.2
2004	3
2005	2.9
2006	2.9
2007	2.9
2008	2.8
2009	2.8
2010	2.8
2011	2.8
2012	2.8
2013	2.8