Year Years
1800 467.2
1801 467.2
1802 467.2
1803 467.2
1804 467.2
1805 467.2
1806 467.2
1807 467.2
1808 467.2
1809 467.2
1810 467.2
1811 467.2
1812 467.2
1813 467.2
1814 467.2
1815 467.2
1816 467.2
1817 467.2
1818 467.2
1819 467.2
1820 467.2
1821 467.2
1822 467.2
1823 467.2
1824 467.2
1825 467.2
1826 467.2
1827 467.2
1828 467.2
1829 467.2
1830 467.2
1831 467.2
1832 467.2
1833 467.2
1834 467.2
1835 467.2
1836 467.2
1837 467.2
1838 467.2
1839 467.2
1840 467.2
1841 467.2
1842 467.2
1843 467.2
1844 467.2
1845 467.2
1846 467.2
1847 467.2
1848 467.2
1849 467.2
1850 467.2
1851 467.2
1852 467.2
1853 467.2
1854 467.2
1855 467.2
1856 467.2
1857 467.2
1858 467.2
1859 467.2
1860 467.2
1861 467.2
1862 467.2
1863 467.2
1864 467.2
1865 467.2
1866 467.2
1867 467.2
1868 467.2
1869 467.2
1870 467.2
1871 467.2
1872 467.2
1873 467.2
1874 467.2
1875 467.2
1876 467.2
1877 467.2
1878 467.2
1879 467.2
1880 467.2
1881 467.2
1882 467.2
1883 467.2
1884 467.2
1885 467.2
1886 467.2
1887 467.2
1888 467.2
1889 467.2
1890 467.2
1891 467.2
1892 467.2
1893 467.2
1894 467.2
1895 467.1
1896 467.1
1897 466.9
1898 466.8
1899 466.5
1900 466.2
1901 465.8
1902 465.3
1903 464.8
1904 464.1
1905 463.4
1906 462.7
1907 445.4
1908 426
1909 413.5
1910 386.5
1911 385.6
1912 383.5
1913 391.1
1914 407.4
1915 450.8
1916 429.7
1917 410.8
1918 480.7
1919 411.3
1920 457.5
1921 424.5
1922 344.4
1923 358.3
1924 337.2
1925 369.2
1926 336.6
1927 308
1928 300
1929 293.2
1930 286.4
1931 288.7
1932 287
1933 279.3
1934 272.8
1935 270.1
1936 277.2
1937 271.7
1938 259.6
1939 259.8
1940 257.3
1941 246.5
1942 235.9
1943 226.5
1944 216.4
1945 206.5
1946 196.9
1947 187.5
1948 179.1
1949 170.1
1950 161.3
1951 157.1
1952 132.4
1953 119.7
1954 108
1955 104.8
1956 103.3
1957 103
1958 91.15
1959 90.15
1960 88.01
1970 27.16
1971 25.27
1972 22.05
1973 21.7
1974 19.93
1975 19.71
1976 18.04
1977 16.58
1978 15.7
1979 15.05
1980 15.27
1981 14.27
1982 12.82
1983 11.82
1984 10.8
1985 10.58
1986 9.75
1987 8.52
1988 8.99
1989 8.91
1990 8.95
1991 8.44
1992 8.25
1993 7.77
1994 7.63
1995 9.02
1996 9.27
1997 9
1998 8.94
1999 9.07
2000 8.55
2001 7.98
2002 7.66
2003 6.94
2004 7.39
2005 7.04
2006 6.7
2007 6.61
2008 6.43
2009 5.64
2010 5.38
2011 5.38
2012 5.38
2013 5.38