Year	Years
1800	391
1801	391
1802	391
1803	391
1804	391
1805	391
1806	391
1807	391
1808	391
1809	391
1810	391
1811	391
1812	391
1813	391
1814	391
1815	391
1816	391
1817	391
1818	391
1819	391
1820	391
1821	391
1822	391
1823	391
1824	391
1825	391
1826	391
1827	391
1828	391
1829	391
1830	391
1831	391
1832	391
1833	391
1834	391
1835	391
1836	391
1837	391
1838	391
1839	391
1840	391
1841	391
1842	391
1843	391
1844	391
1845	391
1846	391
1847	391
1848	391
1849	391
1850	391
1851	391
1852	391
1862	115.4
1863	173.4
1864	186.6
1865	167.8
1866	149.3
1867	145.6
1868	142
1869	145.6
1870	136.6
1871	118.9
1872	149.3
1873	164.1
1874	165.9
1875	197.8
1876	154.8
1877	133
1878	120.6
1879	162.2
1880	136.6
1881	134.8
1882	127.7
1883	156.7
1884	112
1885	129.4
1886	145.6
1887	138.4
1888	98.52
1889	112
1890	112
1891	133
1892	129.4
1893	127.7
1894	115.4
1895	127.7
1896	108.6
1897	100.2
1898	113.7
1899	142
1900	105.2
1901	98.52
1902	118.9
1903	115.4
1904	98.52
1905	93.6
1906	84.24
1907	129.4
1908	93.6
1909	84.24
1910	93.6
1911	75.01
1912	67.3
1913	79.68
1914	67.3
1915	67.3
1916	67.3
1917	62.78
1918	62.78
1919	58.34
1920	67.3
1921	62.78
1922	53.96
1923	56.87
1924	51.09
1925	56.87
1926	56.87
1927	58.34
1928	51.09
1929	46.87
1930	48.26
1931	46.87
1932	48.26
1933	48.26
1934	49.67
1935	52.53
1936	52.53
1937	49.67
1938	65.79
1939	53.96
1940	46.87
1941	51.09
1942	46.87
1943	49.67
1944	49.67
1945	44.11
1946	40.06
1947	37.32
1948	36.04
1949	38.96
1950	35.5
1951	34.8
1952	33.9
1953	33
1954	32.1
1955	31.3
1956	30.6
1957	30.1
1958	29.5
1959	28.8
1960	27.9
1961	26.9
1962	25.8
1963	24.7
1964	23.8
1965	23
1966	22.5
1967	22
1968	21.6
1969	21.2
1970	20.8
1971	20.3
1972	19.9
1973	19.4
1974	18.9
1975	18.3
1976	17.7
1977	17.1
1978	16.6
1979	16
1980	15.6
1981	15.2
1982	14.8
1983	14.5
1984	14.2
1985	13.8
1986	13.4
1987	12.9
1988	12.4
1989	11.8
1990	11.2
1991	10.5
1992	10
1993	9.5
1994	9.1
1995	8.7
1996	8.4
1997	8.1
1998	7.8
1999	7.6
2000	7.4
2001	7.2
2002	7
2003	6.8
2004	6.7
2005	6.6
2006	6.5
2007	6.4
2008	6.4
2009	6.4
2010	6.4
2011	6.4
2012	6.4
2013	6.3