Year	Years
1800	329
1801	326.8
1802	324.6
1803	322.4
1804	321.3
1805	320.2
1806	318
1807	317
1808	315.9
1809	314.8
1810	313.7
1811	311.5
1812	310.4
1813	308.3
1814	309.4
1815	310.4
1816	311.5
1817	312.6
1818	313.7
1819	313.7
1820	314.8
1821	315.9
1822	317
1823	317
1824	314.8
1825	312.6
1826	311.5
1827	309.4
1828	307.2
1829	308.3
1830	309.4
1831	310.4
1841	251.1
1842	261.6
1843	258.3
1844	259
1845	248.3
1846	281.4
1847	281.6
1848	278.6
1849	279.9
1850	247.4
1851	262.3
1852	267.2
1853	264.4
1854	281.9
1855	261
1856	247.3
1857	262.5
1858	280.7
1859	273.9
1860	244.3
1861	258.5
1862	253.7
1863	279.5
1864	271.8
1865	266.9
1866	268.9
1867	248.3
1868	262.9
1869	262.9
1870	268.4
1871	258.1
1872	243.6
1873	235.4
1874	252.8
1875	252.2
1876	238.6
1877	225.1
1878	251.6
1879	228.2
1880	251.1
1881	209.8
1882	232.6
1883	221.5
1884	233.2
1885	218.9
1886	230.6
1887	227.1
1888	212.9
1889	227.8
1890	232
1891	232.9
1892	227.6
1893	236.2
1894	207.3
1895	236.9
1896	225.2
1897	226.3
1898	231.2
1899	232.3
1900	225.5
1901	215.6
1902	199.4
1903	191.2
1904	208.6
1905	185.9
1906	190.1
1907	176
1908	175.7
1909	162.9
1910	155.9
1911	189.2
1912	145.8
1913	157.9
1914	155.5
1915	165.8
1916	133.7
1917	136.6
1918	171.1
1919	134.8
1920	133.6
1921	114.1
1922	120.1
1923	102.3
1924	114.2
1925	112.5
1926	103.2
1927	103.6
1928	98.08
1929	113.8
1930	89.43
1931	95.38
1932	92.78
1933	87.72
1934	86.47
1935	80.54
1936	83.32
1937	80.48
1938	73.5
1939	65.9
1940	77.25
1941	81.31
1942	68.03
1943	64.65
1944	59.49
1945	55.1
1946	53.59
1947	53.54
1948	40.16
1949	38.27
1950	36.6
1951	35.1
1952	33.6
1953	32.1
1954	30.8
1955	29.6
1956	28.7
1957	27.9
1958	27.4
1959	27
1960	26.6
1961	26.1
1962	25.6
1963	24.9
1964	24.2
1965	23.4
1966	22.8
1967	22.2
1968	21.8
1969	21.4
1970	21
1971	20.6
1972	20.1
1973	19.4
1974	18.7
1975	18
1976	17.2
1977	16.5
1978	15.7
1979	14.9
1980	14.1
1981	13.4
1982	12.7
1983	12.2
1984	11.7
1985	11.4
1986	11.1
1987	10.8
1988	10.4
1989	9.9
1990	9.3
1991	8.7
1992	8.2
1993	7.8
1994	7.4
1995	7.2
1996	7
1997	6.9
1998	6.8
1999	6.7
2000	6.6
2001	6.5
2002	6.3
2003	6.3
2004	6.1
2005	6
2006	5.9
2007	5.8
2008	5.6
2009	5.4
2010	5.2
2011	5
2012	4.8
2013	4.6