Year Years 1800 427.9 1801 427.9 1802 427.9 1803 427.9 1804 427.9 1805 427.9 1806 427.9 1807 427.9 1808 427.9 1809 427.9 1810 427.9 1811 427.9 1812 427.9 1813 427.9 1814 427.9 1815 427.9 1816 427.9 1817 427.9 1818 427.9 1819 427.9 1820 427.9 1821 427.9 1822 427.9 1823 427.9 1824 427.9 1825 427.9 1826 427.9 1827 427.9 1828 427.9 1829 427.9 1830 427.9 1831 427.9 1832 427.9 1833 427.9 1834 427.9 1835 427.9 1836 427.9 1837 427.9 1838 427.9 1839 427.9 1840 427.9 1841 427.9 1842 427.9 1843 427.9 1844 427.9 1845 427.9 1846 427.9 1847 427.9 1848 427.9 1849 427.9 1850 427.9 1851 427.9 1852 427.9 1853 427.9 1854 427.9 1855 427.9 1856 427.9 1857 427.9 1858 427.9 1859 427.9 1860 427.9 1861 427.9 1862 427.9 1863 427.9 1864 427.9 1865 427.9 1866 427.9 1867 427.9 1868 427.9 1869 427.9 1870 427.9 1871 427.9 1872 427.9 1873 427.9 1874 427.9 1875 427.9 1876 427.9 1877 427.9 1878 427.9 1879 427.9 1880 427.9 1881 427.9 1882 427.9 1883 427.9 1884 427.9 1885 427.9 1886 427.9 1887 427.9 1888 427.9 1889 427.9 1890 427.9 1891 427.9 1892 427.9 1893 427.9 1894 427.8 1895 427.8 1896 427.7 1897 427.6 1898 427.5 1899 427.2 1900 426.9 1901 426.6 1902 426.1 1903 425.6 1904 425.1 1905 424.4 1906 423.7 1907 422.9 1908 422.1 1909 421.2 1910 420.3 1911 419.3 1912 418.3 1913 417.3 1914 416.3 1915 415.3 1916 414.3 1917 413.3 1918 412.3 1919 411.3 1920 410.3 1921 409.3 1922 408.3 1923 407.3 1924 406.3 1925 405.3 1926 404.3 1927 403.3 1928 402.2 1929 401.2 1930 400.2 1931 399.2 1932 398.2 1933 397.2 1934 396.2 1935 395.2 1936 394.2 1937 393.2 1938 392.2 1939 391.2 1940 390.2 1941 389.2 1942 388.2 1943 387.2 1944 386.2 1945 385.2 1946 384.2 1955 352.8 1956 344.3 1957 335.8 1958 327.7 1959 319.6 1960 311.6 1961 303.9 1962 296.2 1963 288.8 1964 281.7 1965 274.9 1966 268.1 1967 261.4 1968 254.7 1969 248.1 1970 241.4 1971 234.3 1972 226.8 1973 218.5 1974 209.8 1975 200.9 1976 192.3 1977 184.2 1978 177.3 1979 171.3 1980 166.4 1981 162.5 1982 159.4 1983 156.9 1984 155 1985 153.7 1986 152.7 1987 152.1 1988 151.8 1989 151.6 1990 151.6 1991 151.5 1992 151.6 1993 151.6 1994 151.6 1995 151.5 1996 151.4 1997 150.8 1998 149.7 1999 148.2 2000 146.1 2001 143.4 2002 140.3 2003 136.9 2004 133.2 2005 129.3 2006 125.4 2007 121.4 2008 117 2009 113.1 2010 109.3 2011 106.2 2012 103 2013 100