Year Years 1800 433.1 1801 433.1 1802 433.1 1803 433.1 1804 433.1 1805 433.1 1806 433.1 1807 433.1 1808 433.1 1809 433.1 1810 433.1 1811 433.1 1812 433.1 1813 433.1 1814 433.1 1815 433.1 1816 433.1 1817 433.1 1818 433.1 1819 433.1 1820 433.1 1821 433.1 1822 433.1 1823 433.1 1824 433.1 1825 433.1 1826 433.1 1827 433.1 1828 433.1 1829 433.1 1830 433.1 1831 433.1 1832 433.1 1833 433.1 1834 433.1 1835 433.1 1836 433.1 1837 433.1 1838 433.1 1839 433.1 1840 433.1 1841 433.1 1842 433.1 1843 433.1 1844 433.1 1845 433.1 1846 433.1 1847 433.1 1848 433.1 1849 433.1 1850 433.1 1851 433.1 1852 433.1 1853 433.1 1854 433.1 1855 433.1 1856 433.1 1857 433.1 1858 433.1 1859 433.1 1860 433.1 1861 433.1 1862 433.1 1863 433.1 1864 433.1 1865 433.1 1866 433.1 1867 433.1 1868 433.1 1869 433.1 1870 433.1 1871 433.1 1872 433.1 1873 433.1 1874 433.1 1875 433.1 1876 433.1 1877 433.1 1878 433.1 1879 433.1 1880 433.1 1881 433.1 1882 433.1 1883 433.1 1884 433.1 1885 433.1 1886 433.1 1887 433.1 1888 433.1 1889 433.1 1890 433.1 1891 433.1 1892 433.1 1893 433.1 1894 433.1 1895 433.1 1896 433 1897 432.9 1898 432.7 1899 432.5 1900 432.2 1901 431.8 1902 431.4 1903 430.9 1904 430.3 1905 429.6 1906 428.9 1907 428.2 1908 427.3 1909 426.4 1910 425.5 1911 424.5 1912 423.5 1913 422.4 1914 421.4 1915 420.4 1916 419.4 1917 418.4 1918 417.4 1919 416.4 1920 415.3 1921 414.3 1922 413.3 1923 412.3 1924 411.3 1925 410.3 1926 409.2 1927 408.2 1928 407.2 1929 406.2 1930 405.2 1931 404.2 1932 403.1 1933 402.1 1934 401.1 1935 400.1 1936 399.1 1937 398.1 1938 397.1 1939 396 1940 395 1941 394 1942 393 1943 392 1944 390.9 1945 389.9 1946 379.5 1947 369.3 1948 359.2 1949 348.3 1950 338.7 1951 337.8 1952 336.9 1953 334.5 1954 332.8 1955 329.5 1956 325.8 1957 321.8 1967 312.4 1968 316.4 1969 320.6 1970 325 1971 329.2 1972 332.7 1973 335.3 1974 336.5 1975 335.4 1976 332.7 1977 328.8 1978 324.2 1979 320.2 1980 317.8 1981 317.6 1982 319.6 1983 323.2 1984 327.5 1985 331.6 1986 334.6 1987 335.7 1988 334.7 1989 331.8 1990 327.3 1991 320.9 1992 312.7 1993 302.9 1994 291.4 1995 278.7 1996 266.4 1997 255.2 1998 245.2 1999 235.9 2000 226.9 2001 217.6 2002 207.1 2003 195.9 2004 184.4 2005 172.8 2006 161.9 2007 151.4 2008 141.4 2009 132.1 2010 123.5 2011 116.1 2012 109.7 2013 104.2