Year Years
1800 417.4
1801 417.4
1802 417.4
1803 417.4
1804 417.4
1805 417.4
1806 417.4
1807 417.4
1808 417.4
1809 417.4
1810 417.4
1811 417.4
1812 417.4
1813 417.4
1814 417.4
1815 417.4
1816 417.4
1817 417.4
1818 417.4
1819 417.4
1820 417.4
1821 417.4
1822 417.4
1823 417.4
1824 417.4
1825 417.4
1826 417.4
1827 417.4
1828 417.4
1829 417.4
1830 417.4
1831 417.4
1832 417.4
1833 417.4
1834 417.4
1835 417.4
1836 417.4
1837 417.4
1838 417.4
1839 417.4
1840 417.4
1841 417.4
1842 417.4
1843 417.4
1844 417.4
1845 417.4
1846 417.4
1847 417.4
1848 417.4
1849 417.4
1850 417.4
1851 417.4
1852 417.4
1853 417.4
1854 417.4
1855 417.4
1856 417.4
1857 417.4
1858 417.4
1859 417.4
1860 417.4
1861 417.4
1862 417.4
1863 417.4
1864 417.4
1865 417.4
1866 417.4
1867 417.4
1868 417.4
1869 417.4
1870 417.4
1871 417.4
1872 417.4
1873 417.4
1874 417.4
1875 417.4
1876 417.4
1877 417.4
1878 417.4
1879 417.4
1880 417.4
1881 417.4
1882 417.4
1883 417.4
1884 417.4
1885 417.4
1886 417.4
1887 417.4
1888 417.4
1889 417.4
1890 417.4
1891 417.4
1892 417.4
1893 417.4
1894 417.4
1895 417.4
1896 417.3
1897 417.2
1898 417.1
1899 416.8
1900 416.5
1901 416.2
1902 415.8
1903 415.3
1904 414.7
1905 414.1
1906 413.4
1907 412.6
1908 411.8
1909 411
1910 410.1
1911 409.1
1912 408.1
1913 407.1
1914 406.2
1915 405.2
1916 404.2
1917 403.2
1918 402.2
1919 401.3
1920 400.3
1921 399.3
1922 398.3
1923 397.4
1924 396.4
1925 395.4
1926 394.4
1927 393.4
1928 392.5
1929 391.5
1930 390.5
1931 389.5
1932 388.5
1933 387.6
1934 386.6
1935 385.6
1936 384.6
1937 383.6
1938 382.7
1939 381.7
1940 380.7
1950 310.9
1951 305.8
1952 300.7
1953 295.3
1954 289.6
1955 284.1
1956 278.6
1957 272.9
1958 267.1
1959 261.1
1960 254.8
1961 248.4
1962 241.9
1963 235.4
1964 229
1965 222.4
1966 215.9
1967 209.4
1968 203.6
1969 198.5
1970 194.9
1971 192.3
1972 190.5
1973 189.1
1974 187.5
1975 184.9
1976 181.5
1977 177.4
1978 172.8
1979 168
1980 163.3
1981 158.7
1982 154
1983 149.1
1984 144
1985 138.4
1986 133
1987 128
1988 123.8
1989 120.5
1990 117.8
1991 115.9
1992 114.6
1993 113.8
1994 113.5
1995 113.4
1996 113.3
1997 113.3
1998 113.3
1999 113.3
2000 113.1
2001 112.9
2002 112.7
2003 112.1
2004 111.3
2005 110
2006 108.1
2007 105.9
2008 103.4
2009 100.8
2010 98.2
2011 95.6
2012 92.9
2013 90.1