Year Years
1800 426.6
1801 426.6
1802 426.6
1803 426.6
1804 426.6
1805 426.6
1806 426.6
1807 426.6
1808 426.6
1809 426.6
1810 426.6
1811 426.6
1812 426.6
1813 426.6
1814 426.6
1815 426.6
1816 426.6
1817 426.6
1818 426.6
1819 426.6
1820 426.6
1821 426.6
1822 426.6
1823 426.6
1824 426.6
1825 426.6
1826 426.6
1827 426.6
1828 426.6
1829 426.6
1830 426.6
1831 426.6
1832 426.6
1833 426.6
1834 426.6
1835 426.6
1836 426.6
1837 426.6
1838 426.6
1839 426.6
1840 426.6
1841 426.6
1842 426.6
1843 426.6
1844 426.6
1845 426.6
1846 426.6
1847 426.6
1848 426.6
1849 426.6
1850 426.6
1851 426.6
1852 426.6
1853 426.6
1854 426.6
1855 426.6
1856 426.6
1857 426.6
1858 426.6
1859 426.6
1860 426.6
1861 426.6
1862 426.6
1863 426.6
1864 426.6
1865 426.6
1866 426.6
1867 426.6
1868 426.6
1869 426.6
1870 426.6
1871 426.6
1872 426.6
1873 426.6
1874 426.6
1875 426.6
1876 426.6
1877 426.6
1878 426.6
1879 426.6
1880 426.6
1881 426.6
1882 426.6
1883 426.6
1884 426.6
1885 426.6
1886 426.6
1887 426.6
1888 426.6
1889 426.6
1890 426.6
1891 426.6
1892 426.6
1893 426.6
1894 426.5
1895 426.5
1896 426.4
1897 426.3
1898 426.2
1899 425.9
1900 425.6
1901 425.3
1902 424.8
1903 424.3
1904 423.8
1905 423.1
1906 422.4
1907 421.7
1908 420.8
1909 419.9
1910 419
1911 418
1912 417
1913 416
1914 415
1915 414
1916 413
1917 412
1918 411
1919 410
1920 409
1921 408
1922 407
1923 406
1924 405
1925 404
1926 403
1927 402
1928 401
1929 400
1930 399
1931 398
1932 397
1933 396
1934 395
1935 394
1936 393
1937 392
1938 391
1939 390
1940 389
1950 324.2
1951 318.9
1952 313.9
1953 308.8
1954 303.9
1955 298.9
1956 294
1957 289.1
1958 284.3
1959 279.5
1960 274.7
1961 270
1962 265.3
1963 260.4
1964 255.7
1965 250.8
1966 245.9
1967 241
1968 236.1
1969 231
1970 225.8
1971 220.7
1972 215.6
1973 210.5
1974 205.4
1975 200.3
1976 195.4
1977 190.6
1978 186
1979 181.5
1980 177.2
1981 173.1
1982 169.2
1983 165.4
1984 162
1985 158.7
1986 155.7
1987 153
1988 150.6
1989 148.4
1990 146.4
1991 144.5
1992 142.6
1993 140.7
1994 138.7
1995 136.4
1996 133.8
1997 130.9
1998 128
1999 124.9
2000 121.8
2001 118.6
2002 115.7
2003 112.6
2004 109.8
2005 107
2006 104.2
2007 101.4
2008 98.5
2009 95.6
2010 92.9
2011 90.2
2012 87.5
2013 84.7