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 383.6
1932 377.9
1933 371.1
1934 364.4
1935 358.9
1936 352.4
1937 347
1938 340.6
1939 334.4
1940 329.2
1941 315.7
1942 303.6
1943 291.8
1944 279.2
1945 268
1955 202.5
1956 196.2
1957 190.1
1958 184.3
1959 178.5
1960 172.9
1961 167.3
1962 162.3
1963 157.5
1964 153.3
1965 149.3
1966 145.7
1967 142.3
1968 139
1969 135.7
1970 132.3
1971 128.8
1972 125.3
1973 121.8
1974 118.4
1975 115
1976 111.5
1977 108
1978 104.1
1979 100
1980 95.7
1981 91.3
1982 87
1983 83
1984 79.2
1985 75.8
1986 72.6
1987 69.6
1988 66.8
1989 64.2
1990 61.5
1991 58.9
1992 56.1
1993 53.1
1994 50.1
1995 47
1996 44
1997 41
1998 38.1
1999 35.4
2000 32.9
2001 30.6
2002 28.4
2003 26.4
2004 24.6
2005 22.9
2006 21.4
2007 20
2008 18.6
2009 17.4
2010 16.3
2011 15.3
2012 14.5
2013 13.7