Year Years
1800 423.9
1801 423.9
1802 423.9
1803 423.9
1804 423.9
1805 423.9
1806 423.9
1807 423.9
1808 423.9
1809 423.9
1810 423.9
1811 423.9
1812 423.9
1813 423.9
1814 423.9
1815 423.9
1816 423.9
1817 423.9
1818 423.9
1819 423.9
1820 423.9
1821 423.9
1822 423.9
1823 423.9
1824 423.9
1825 423.9
1826 423.9
1827 423.9
1828 423.9
1829 423.9
1830 423.9
1831 423.9
1832 423.9
1833 423.9
1834 423.9
1835 423.9
1836 423.9
1837 423.9
1838 423.9
1839 423.9
1840 423.9
1841 423.9
1842 423.9
1843 423.9
1844 423.9
1845 423.9
1846 423.9
1847 423.9
1848 423.9
1849 423.9
1850 423.9
1851 423.9
1852 423.9
1853 423.9
1854 423.9
1855 423.9
1856 423.9
1857 423.9
1858 423.9
1859 423.9
1860 423.9
1861 423.9
1862 423.9
1863 423.9
1864 423.9
1865 423.9
1866 423.9
1867 423.9
1868 423.9
1869 423.9
1870 423.9
1871 423.9
1872 423.9
1873 423.9
1874 423.9
1875 423.9
1876 423.9
1877 423.9
1878 423.9
1879 423.9
1880 423.9
1881 423.9
1882 423.9
1883 423.9
1884 423.9
1885 423.9
1886 423.9
1887 423.9
1888 423.9
1889 423.9
1890 423.9
1891 423.9
1892 423.9
1893 423.9
1894 423.9
1895 423.9
1896 423.8
1897 423.7
1898 423.6
1899 423.3
1900 423
1901 422.7
1902 422.2
1903 421.7
1904 421.2
1905 420.5
1906 419.9
1907 419.1
1908 418.3
1909 417.4
1910 416.4
1911 415.5
1912 414.5
1913 413.5
1914 412.5
1915 411.5
1916 410.5
1917 409.5
1918 408.5
1919 407.5
1920 406.5
1921 405.5
1922 404.6
1923 403.6
1924 402.6
1925 401.6
1926 400.6
1927 399.6
1928 398.6
1929 397.6
1930 396.6
1931 395.6
1932 394.6
1933 393.6
1934 392.6
1935 391.6
1936 390.6
1937 389.6
1938 388.6
1939 387.6
1940 386.6
1941 385.6
1942 384.6
1943 383.7
1944 382.7
1945 381.7
1946 364.5
1947 348
1948 331.9
1949 317.4
1959 250.3
1960 249.3
1961 248.4
1962 247.5
1963 246.9
1964 246.8
1965 246.7
1966 246.8
1967 247.2
1968 247.8
1969 248.2
1970 248.1
1971 248
1972 247.6
1973 247.6
1974 247.9
1975 247.4
1976 245.7
1977 242.7
1978 237.8
1979 230.9
1980 222.3
1981 212.6
1982 202.6
1983 192.9
1984 184.3
1985 177.2
1986 172.5
1987 170.2
1988 169.3
1989 169.8
1990 170.8
1991 171.9
1992 172.5
1993 172.3
1994 171.3
1995 169.5
1996 166.5
1997 163.1
1998 158.8
1999 154.1
2000 148.9
2001 143.5
2002 137.8
2003 131.8
2004 125.6
2005 119.3
2006 113.2
2007 107.9
2008 102.4
2009 97.7
2010 93.6
2011 89.7
2012 86.1
2013 82.9