Year Years
1800 412.3
1801 412.3
1802 412.3
1803 412.3
1804 412.3
1805 412.3
1806 412.3
1807 412.3
1808 412.3
1809 412.3
1810 412.3
1811 412.3
1812 412.3
1813 412.3
1814 412.3
1815 412.3
1816 412.3
1817 412.3
1818 412.3
1819 412.3
1820 412.3
1821 412.3
1822 412.3
1823 412.3
1824 412.3
1825 412.3
1826 412.3
1827 412.3
1828 412.3
1829 412.3
1830 412.3
1831 412.3
1832 412.3
1833 412.3
1834 412.3
1835 412.3
1836 412.3
1837 412.3
1838 412.3
1839 412.3
1840 412.3
1841 412.3
1842 412.3
1843 412.3
1844 412.3
1845 412.3
1846 412.3
1847 412.3
1848 412.3
1849 412.3
1850 412.3
1851 412.3
1852 412.3
1853 412.3
1854 412.3
1855 412.3
1856 412.3
1857 412.3
1858 412.3
1859 412.3
1860 412.3
1861 412.3
1862 412.3
1863 412.3
1864 412.3
1865 412.3
1866 412.3
1867 412.3
1868 412.3
1869 412.3
1870 412.3
1871 412.3
1872 412.3
1873 412.3
1874 412.3
1875 412.3
1876 412.3
1877 412.3
1878 412.3
1879 412.3
1880 412.3
1881 412.3
1882 412.3
1883 412.3
1884 412.3
1885 412.3
1886 412.3
1887 412.3
1888 412.3
1889 412.3
1890 412.3
1891 412.3
1892 412.3
1893 412.3
1894 412.3
1895 412.3
1896 412.2
1897 412.1
1898 412
1899 411.7
1900 411.4
1901 411.1
1902 410.7
1903 410.2
1904 409.6
1905 409
1906 408.4
1907 407.6
1908 406.8
1909 405.9
1910 405
1911 404.1
1912 403.1
1913 402.2
1914 401.2
1915 400.2
1916 399.3
1917 398.3
1918 397.3
1919 396.4
1920 395.4
1921 394.4
1922 393.5
1923 392.5
1924 391.5
1925 390.6
1926 389.6
1927 388.6
1928 387.7
1929 386.7
1930 385.7
1931 384.8
1932 383.8
1933 382.8
1934 381.9
1935 380.9
1936 379.9
1937 379
1938 378
1939 377
1940 376.1
1941 365.9
1942 355.9
1943 346.1
1944 337.6
1945 328.1
1946 318.9
1947 309.8
1948 300.9
1949 292.1
1950 283.6
1960 152.9
1967 97.4
1968 97.7
1969 98
1970 98.3
1971 98.5
1972 98.9
1973 99.3
1974 99.6
1975 99.9
1976 100.1
1977 100.1
1978 99.8
1979 99.1
1980 97.9
1981 96.4
1982 94.4
1983 92
1984 89.3
1985 86.5
1986 83.6
1987 80.7
1988 78
1989 75.7
1990 73.6
1991 71.8
1992 70.5
1993 69.7
1994 69.3
1995 69.6
1996 70.2
1997 71.3
1998 72.6
1999 74.1
2000 75.5
2001 76.6
2002 77.2
2003 77.2
2004 76.6
2005 72.8
2006 68
2007 64.7
2008 61.9
2009 58.8
2010 55.7
2011 52.6
2012 50.6
2013 49.8