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 430.5
1852 443.8
1853 457.4
1854 471.4
1855 485.7
1856 500.4
1857 491.6
1858 481.4
1859 472.8
1860 464.4
1861 456.1
1862 446.5
1863 438.5
1864 430.5
1865 429.2
1866 426.6
1867 425.2
1868 422.6
1869 421.3
1870 418.7
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 376.7
1933 369.9
1934 363.2
1935 356.7
1936 350.1
1937 345.9
1938 340.6
1939 336.5
1940 332.4
1950 317.1
1955 291
1958 233.3
1959 268.4
1960 309
1961 261.9
1962 167.8
1965 115.4
1968 132.3
1969 119.1
1970 113.2
1971 107.6
1972 102.1
1973 96.5
1974 90.8
1975 85.3
1976 79.8
1977 74.6
1978 70
1979 65.9
1980 62.4
1981 59.5
1982 57.2
1983 55.5
1984 54.4
1985 53.8
1986 53.7
1987 53.8
1988 54
1989 54.1
1990 53.9
1991 53.4
1992 52.4
1993 51.1
1994 49.4
1995 47.5
1996 45.6
1997 43.6
1998 41.5
1999 39.3
2000 36.9
2001 34.3
2002 31.6
2003 28.9
2004 26.3
2005 23.9
2006 21.8
2007 20
2008 18.4
2009 17.1
2010 15.8
2011 14.7
2012 13.6
2013 12.7