Year Years
1800 431.8
1801 431.8
1802 431.8
1803 431.8
1804 431.8
1805 431.8
1806 431.8
1807 431.8
1808 431.8
1809 431.8
1810 431.8
1811 431.8
1812 431.8
1813 431.8
1814 431.8
1815 431.8
1816 431.8
1817 431.8
1818 431.8
1819 431.8
1820 431.8
1821 431.8
1822 431.8
1823 431.8
1824 431.8
1825 431.8
1826 431.8
1827 431.8
1828 431.8
1829 431.8
1830 431.8
1831 431.8
1832 431.8
1833 431.8
1834 431.8
1835 431.8
1836 431.8
1837 431.8
1838 431.8
1839 431.8
1840 431.8
1841 431.8
1842 431.8
1843 431.8
1844 431.8
1845 431.8
1846 431.8
1847 431.8
1848 431.8
1849 431.8
1850 431.8
1851 431.8
1852 431.8
1853 431.8
1854 431.8
1855 431.8
1856 431.8
1857 431.8
1858 431.8
1859 431.8
1860 431.8
1861 431.8
1862 431.8
1863 431.8
1864 431.8
1865 431.8
1866 431.8
1867 431.8
1868 431.8
1869 431.8
1870 431.8
1871 431.8
1872 431.8
1873 431.8
1874 431.8
1875 431.8
1876 431.8
1877 431.8
1878 431.8
1879 431.8
1880 431.8
1881 431.8
1882 431.8
1883 431.8
1884 431.8
1885 431.8
1886 431.8
1887 431.8
1888 431.8
1889 431.8
1890 431.8
1891 431.8
1892 431.8
1893 431.8
1894 431.8
1895 431.8
1896 431.7
1897 431.6
1898 431.4
1899 431.2
1900 430.9
1901 430.5
1902 430.1
1903 429.5
1904 429
1905 428.3
1906 427.6
1907 426.8
1908 426
1909 425.1
1910 424.1
1911 423.2
1912 422.2
1913 421.1
1914 420.1
1915 419.1
1916 418.1
1917 417.1
1918 416.1
1919 415.1
1920 414.1
1921 413.1
1922 412
1923 411
1924 410
1925 409
1926 408
1927 407
1928 406
1929 404.9
1930 403.9
1931 402.9
1932 401.9
1933 400.9
1934 399.9
1935 398.9
1936 397.9
1937 396.8
1938 395.8
1939 394.8
1940 393.8
1941 392.8
1942 391.8
1943 390.8
1944 389.7
1945 388.7
1946 377.2
1947 364.7
1948 353.7
1949 342.9
1950 331.2
1951 329.3
1952 326.3
1953 321.9
1954 318.2
1955 313
1956 307.4
1957 302.6
1958 296.4
1959 290.3
1969 275.8
1970 272.1
1971 268.6
1972 265.1
1973 261.8
1974 258.7
1975 255.7
1976 252.9
1977 250.2
1978 247.6
1979 244.9
1980 242.4
1981 239.8
1982 237.1
1983 234.3
1984 231.4
1985 228.5
1986 225.7
1987 222.9
1988 220.2
1989 217.4
1990 214.7
1991 212.1
1992 209.6
1993 207.2
1994 205
1995 202.8
1996 200.6
1997 198.3
1998 195.9
1999 193.4
2000 190.7
2001 188
2002 185.3
2003 182.8
2004 180.3
2005 177.9
2006 175.3
2007 172.4
2008 169
2009 164.8
2010 160.4
2011 156.1
2012 151.8
2013 147.5