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 387.1
1932 385
1933 381.6
1934 378.3
1935 376.2
1936 372.9
1937 357.1
1938 340.6
1939 325.8
1940 310.3
1941 296.3
1942 281.7
1943 268.5
1944 254.7
1945 242.1
1946 229.1
1947 217.3
1948 204.9
1949 193.7
1959 124.9
1960 120.6
1961 116.5
1962 112.6
1963 108.9
1964 105.2
1965 101.9
1966 98.8
1967 95.9
1968 93.2
1969 90.6
1970 88.2
1971 85.9
1972 83.8
1973 81.7
1974 79.7
1975 77.7
1976 75.7
1977 73.8
1978 72
1979 70
1980 68.2
1981 66.4
1982 64.7
1983 63.1
1984 61.4
1985 59.7
1986 58
1987 56.2
1988 54.4
1989 52.5
1990 50.6
1991 48.6
1992 46.8
1993 45
1994 43.3
1995 41.7
1996 40.2
1997 38.8
1998 37.5
1999 36.2
2000 35.1
2001 34
2002 32.9
2003 31.9
2004 31
2005 30
2006 29.2
2007 28.3
2008 27.5
2009 26.7
2010 25.9
2011 25.2
2012 24.5
2013 23.8