Year	Years
1800	387.3
1806	309
1807	325.3
1808	315.5
1809	299.1
1810	302.4
1811	307.3
1812	295.9
1813	302.4
1814	326.9
1815	305.7
1816	289.3
1817	292.6
1818	294.2
1819	307.3
1820	299.1
1821	300.8
1822	322
1823	297.5
1824	312.3
1825	320.4
1826	317.1
1827	294.2
1828	305.7
1829	284.4
1830	385.1
1831	436.9
1832	394.8
1833	422.2
1834	440.1
1835	402.9
1836	383.5
1837	410.9
1838	390
1839	414.1
1840	396.4
1841	407.7
1842	398
1843	420.6
1844	373.8
1845	401.3
1846	407.7
1849	394.8
1850	407.7
1851	393.2
1852	393.2
1853	368.9
1854	443.4
1855	451.5
1856	391.6
1857	388.4
1858	406.1
1859	412.6
1860	385.1
1861	428.7
1862	406.1
1863	420.6
1864	406.1
1865	438.5
1866	451.5
1867	410.9
1868	402.9
1869	393.2
1870	410.9
1871	414.1
1872	438.5
1873	471
1874	422.2
1875	394.8
1876	401.3
1877	419
1878	409.3
1879	390
1880	406.1
1881	406.1
1882	415.7
1883	410.9
1884	401.3
1885	414.1
1886	406.1
1887	396.4
1888	404.5
1889	383.5
1890	420.6
1891	394.8
1892	420.6
1893	377
1894	407.7
1895	391.6
1896	373.8
1897	370.5
1898	364.1
1899	356.1
1900	375.4
1901	339.9
1902	351.2
1903	349.6
1904	341.5
1905	375.4
1906	328.5
1907	339.9
1908	323.6
1909	339.9
1910	307.3
1911	336.6
1912	294.2
1913	309
1914	279.4
1915	354.4
1916	312.3
1917	302.4
1918	313.9
1919	253.2
1922	253.2
1923	227.8
1924	201.6
1925	184.7
1926	192.2
1927	196
1928	186.6
1929	173.4
1930	156.7
1931	154.8
1932	160.4
1933	138.4
1934	134.8
1935	147.4
1936	136.6
1937	134.8
1938	113.7
1939	101.8
1940	103.5
1941	96.88
1942	103.5
1943	112
1944	127.7
1945	263.5
1946	115.4
1947	104.5
1948	92.09
1949	86.87
1950	75.32
1951	69.81
1952	59.54
1953	56.57
1954	54.9
1955	53.4
1956	51.8
1957	49.9
1958	47.9
1959	45.5
1960	42.9
1961	40.2
1962	37.9
1963	35.9
1964	34.2
1965	32.7
1966	31.5
1967	30.5
1968	29.8
1969	29.3
1970	29
1971	28.7
1972	28
1973	26.8
1974	25.1
1975	23.1
1976	21.1
1977	19.4
1978	18.1
1979	17.1
1980	16.3
1981	15.5
1982	14.7
1983	14
1984	13.3
1985	12.6
1986	11.8
1987	11.1
1988	10.5
1989	10
1990	9.5
1991	9
1992	8.5
1993	8
1994	7.4
1995	6.8
1996	6.4
1997	6
1998	5.8
1999	5.6
2000	5.5
2001	5.4
2002	5.3
2003	5.2
2004	5
2005	4.9
2006	4.8
2007	4.6
2008	4.6
2009	4.5
2010	4.4
2011	4.2
2012	4
2013	3.9