Year	Years
1800	339.1
1801	339.1
1802	339.1
1803	339.1
1804	339.1
1805	339.1
1806	339.1
1807	339.1
1808	339.1
1809	339.1
1810	339.1
1811	339.1
1812	339.1
1813	339.1
1814	339.1
1815	339.1
1816	339.1
1817	339.1
1818	339.1
1819	339.1
1820	339.1
1821	339.1
1822	339.1
1823	339.1
1824	339.1
1825	339.1
1826	339.1
1827	339.1
1828	339.1
1829	339.1
1830	339.1
1831	339.1
1832	339.1
1833	339.1
1834	339.1
1835	339.1
1836	339.1
1837	339.1
1838	339.1
1839	339.1
1840	339.1
1841	339.1
1842	339.1
1843	339.1
1844	339.1
1845	339.1
1846	339.1
1847	339.1
1848	339.1
1849	339.1
1850	339.1
1851	339.1
1852	339.1
1853	339.1
1854	339.1
1855	339.1
1856	339.1
1857	339.1
1858	339.1
1859	339.1
1860	339.1
1861	339.1
1862	339.1
1863	339.1
1864	339.1
1865	339.1
1866	339.1
1867	339.1
1868	339.1
1869	339.1
1870	339.1
1871	339.1
1872	339.1
1873	339.1
1874	339.1
1875	339.1
1876	339.1
1877	339.1
1878	339.1
1879	339.1
1880	339.1
1881	339.1
1882	339.1
1883	339.1
1884	339.1
1885	339.1
1886	339.1
1887	339.1
1888	339.1
1889	339.1
1890	339.1
1891	339.1
1892	339.1
1893	339.1
1894	339.1
1895	339.1
1896	331.2
1897	324.4
1898	316.7
1899	310
1900	302.3
1901	295.8
1902	288.2
1903	281.7
1904	274.2
1905	267.8
1906	265.4
1907	261.9
1908	259.5
1909	256
1910	253.5
1911	250.1
1912	247.6
1913	244.1
1914	241.7
1915	238.3
1916	236.8
1917	235.3
1918	233.8
1919	232.3
1920	230.8
1921	229.3
1922	227.9
1923	226.4
1924	225
1925	223.5
1926	223
1927	222.4
1928	221.8
1929	221.3
1930	220.7
1931	220.2
1932	219.6
1933	219.1
1934	218.5
1935	218
1936	217.4
1937	216.9
1938	209.4
1939	202.2
1940	194.2
1941	187.2
1942	180.3
1943	172.8
1944	159.3
1945	145.6
1946	132.4
1947	120.4
1948	108.3
1949	96.64
1950	86.18
1960	37.32
1970	35.97
1978	25.6
1979	22.5
1980	20.8
1981	19.2
1982	17.6
1983	16.1
1984	14.7
1985	13.4
1986	12.4
1987	11.8
1988	11.4
1989	11.2
1990	11.1
1991	10.9
1992	10.5
1993	10.1
1994	9.6
1995	9
1996	8.5
1997	8
1998	7.5
1999	7
2000	6.5
2001	6.1
2002	5.7
2003	5.4
2004	5.1
2005	4.8
2006	4.6
2007	4.3
2008	4.2
2009	4
2010	3.9
2011	3.8
2012	3.7
2013	3.6