Year Years
1800 438.5
1801 438.5
1802 438.5
1803 438.5
1804 438.5
1805 438.5
1806 438.5
1807 438.5
1808 438.5
1809 438.5
1810 438.5
1811 438.5
1812 438.5
1813 438.5
1814 438.5
1815 438.5
1816 438.5
1817 438.5
1818 438.5
1819 438.5
1820 438.5
1821 438.5
1822 438.5
1823 438.5
1824 438.5
1825 438.5
1826 438.5
1827 438.5
1828 438.5
1829 438.5
1830 438.5
1831 438.5
1832 438.5
1833 438.5
1834 438.5
1835 438.5
1836 438.5
1837 438.5
1838 438.5
1839 438.5
1840 438.5
1841 438.5
1842 438.5
1843 438.5
1844 438.5
1845 438.5
1846 438.5
1847 438.5
1848 438.5
1849 438.5
1850 438.5
1851 438.5
1852 438.5
1853 438.5
1854 438.5
1855 438.5
1856 438.5
1857 438.5
1858 438.5
1859 438.5
1860 438.5
1861 438.5
1862 438.5
1863 438.5
1864 438.5
1865 438.5
1866 438.5
1867 438.5
1868 438.5
1869 438.5
1870 438.5
1871 438.5
1872 438.5
1873 438.5
1874 438.5
1875 438.5
1876 438.5
1877 438.5
1878 438.5
1879 438.5
1880 438.5
1881 438.5
1882 438.5
1883 438.5
1884 438.5
1885 438.5
1886 438.5
1887 438.5
1888 438.5
1889 438.5
1890 438.5
1891 438.5
1892 438.5
1893 438.5
1894 438.4
1895 438.4
1896 438.3
1897 438.2
1898 438.1
1899 437.8
1900 437.5
1901 437.1
1902 436.7
1903 436.2
1904 435.6
1905 434.9
1906 434.2
1907 433.4
1908 432.6
1909 431.7
1910 430.7
1911 429.7
1912 428.7
1913 427.6
1914 426.6
1915 425.6
1916 424.6
1917 423.5
1918 422.5
1919 421.5
1920 420.4
1921 419.4
1922 418.4
1923 417.4
1924 416.3
1925 415.3
1926 414.3
1927 413.2
1928 412.2
1929 411.2
1930 410.2
1931 391.9
1932 374.4
1933 357.3
1934 339.7
1935 323.8
1936 308.3
1937 293.3
1938 292.6
1939 291.8
1940 301.1
1950 210.5
1951 203
1952 195.7
1953 188.8
1954 182.3
1955 176.1
1956 170
1957 164.1
1958 158.5
1959 153
1960 147.6
1961 142.5
1962 137.4
1963 132.5
1964 127.7
1965 123
1966 118.3
1967 113.6
1968 108.9
1969 104.2
1970 99.4
1971 94.7
1972 90.1
1973 85.6
1974 81.4
1975 77.4
1976 73.6
1977 70.2
1978 66.9
1979 63.8
1980 60.9
1981 58.1
1982 55.5
1983 53
1984 50.6
1985 48.2
1986 45.9
1987 43.6
1988 41.4
1989 39.2
1990 37.1
1991 35.1
1992 33.2
1993 31.5
1994 29.9
1995 28.4
1996 27.1
1997 25.9
1998 24.7
1999 23.6
2000 22.5
2001 21.5
2002 20.5
2003 19.5
2004 18.6
2005 17.8
2006 17
2007 16.3
2008 15.6
2009 15
2010 14.5
2011 14
2012 13.5
2013 13.1