Year	Years
1800	335.7
1801	335.7
1802	335.7
1803	335.7
1804	335.7
1805	335.7
1806	335.7
1807	335.7
1808	335.7
1809	335.7
1810	335.7
1811	335.7
1812	335.7
1813	335.7
1814	335.7
1815	335.7
1816	332.4
1817	329
1818	325.7
1819	322.4
1820	319.1
1821	315.9
1822	312.6
1823	309.4
1824	306.2
1825	303
1826	299.8
1836	212.8
1837	214.7
1838	214.7
1839	256.7
1840	222.2
1841	177.2
1842	192.2
1843	182.8
1844	180.9
1845	182.8
1846	205
1847	226.2
1848	220.6
1849	182.1
1850	168.4
1851	168.8
1852	182.8
1853	166.9
1854	152.6
1855	161.8
1856	170.7
1857	166.2
1858	155.8
1859	173.3
1860	172.8
1861	228.5
1862	246.3
1863	216.9
1864	187.2
1865	179.9
1866	170
1867	188.7
1868	202.7
1869	178.8
1870	162.3
1871	173.2
1872	176.7
1873	181.1
1874	195.3
1875	191.1
1876	199.6
1877	183.2
1878	167.9
1879	147.4
1880	152.1
1881	167.8
1882	206.2
1883	177.2
1884	171.3
1885	159.5
1886	158.7
1887	158.3
1888	168.2
1889	187.8
1890	177.9
1891	161.8
1892	166.1
1893	147.7
1894	171.3
1895	148.3
1896	143.8
1897	138.5
1898	135.8
1899	154.6
1900	133.5
1901	131.6
1902	110.5
1903	118.2
1904	108.1
1905	117.1
1906	101.3
1907	96.66
1908	109.8
1909	103.1
1910	93.55
1911	94.74
1912	95.62
1913	89.77
1914	96.46
1915	90.28
1916	96.89
1917	91.12
1918	101.2
1919	92.79
1920	86.88
1921	71.76
1922	74.31
1923	68.08
1924	65.18
1925	64.87
1926	61.74
1927	64.27
1928	63.77
1929	69.04
1930	59.35
1931	58.97
1932	59.17
1933	58
1934	51.02
1935	54.86
1936	54.17
1937	53.88
1938	48.79
1939	47.98
1940	49.4
1941	55.43
1942	53.43
1943	53.71
1944	54.38
1945	49.52
1946	47.73
1947	41.99
1948	36.44
1949	34.38
1950	33
1951	30.9
1952	29.1
1953	27.6
1954	26.6
1955	25.8
1956	25.2
1957	24.6
1958	23.9
1959	23.3
1960	22.6
1961	22.1
1962	21.6
1963	21
1964	20.4
1965	19.7
1966	19
1967	18.2
1968	17.5
1969	16.9
1970	16.2
1971	15.6
1972	15
1973	14.3
1974	13.6
1975	12.9
1976	12.2
1977	11.5
1978	10.9
1979	10.4
1980	10.1
1981	9.9
1982	9.9
1983	10
1984	10.1
1985	10.2
1986	10.3
1987	10.1
1988	9.8
1989	9.3
1990	8.7
1991	7.9
1992	7.2
1993	6.6
1994	6.1
1995	5.7
1996	5.4
1997	5.2
1998	5.1
1999	5
2000	4.8
2001	4.7
2002	4.5
2003	4.4
2004	4.2
2005	4
2006	3.9
2007	3.7
2008	3.6
2009	3.4
2010	3.2
2011	3.1
2012	2.9
2013	2.8