Year Years
1800 417.4
1801 417.4
1802 417.4
1803 417.4
1804 417.4
1805 417.4
1806 417.4
1807 417.4
1808 417.4
1809 417.4
1810 417.4
1811 417.4
1812 417.4
1813 417.4
1814 417.4
1815 417.4
1816 417.4
1817 417.4
1818 417.4
1819 417.4
1820 417.4
1821 417.4
1822 417.4
1823 417.4
1824 417.4
1825 417.4
1826 417.4
1827 417.4
1828 417.4
1829 417.4
1830 417.4
1831 417.4
1832 417.4
1833 417.4
1834 417.4
1835 417.4
1836 417.4
1837 417.4
1838 417.4
1839 417.4
1840 417.4
1841 417.4
1842 417.4
1843 417.4
1844 417.4
1845 417.4
1846 417.4
1847 417.4
1848 417.4
1849 417.4
1850 417.4
1851 417.4
1852 417.4
1853 417.4
1854 417.4
1855 417.4
1856 417.4
1857 417.4
1858 417.4
1859 417.4
1860 417.4
1861 417.4
1862 417.4
1863 417.4
1864 417.4
1865 417.4
1866 417.4
1867 417.4
1868 417.4
1869 417.4
1870 417.4
1871 417.4
1872 417.4
1873 417.4
1874 417.4
1875 417.4
1876 417.4
1877 417.4
1878 417.4
1879 417.4
1880 417.4
1881 417.4
1882 417.4
1883 417.4
1884 417.4
1885 417.4
1886 417.4
1887 417.4
1888 417.4
1889 417.4
1890 417.4
1891 417.4
1892 417.4
1893 417.4
1894 417.4
1895 417.4
1896 417.3
1897 417.2
1898 417.1
1899 416.8
1900 416.5
1901 416.2
1902 415.8
1903 415.3
1904 414.7
1905 414.1
1906 413.4
1907 412.6
1908 411.8
1909 411
1910 410.1
1911 409.1
1912 408.1
1913 407.1
1914 406.2
1924 227.8
1925 190.3
1926 238.8
1927 231.5
1928 203.5
1929 192.2
1930 160.4
1931 196
1933 229.6
1934 180.9
1935 253.2
1936 247.9
1937 242.5
1938 253.2
1939 263.5
1940 227.8
1941 242.5
1942 249.7
1943 255
1944 251.5
1945 244.3
1946 242.5
1947 224.1
1948 216.6
1949 212.8
1950 194.1
1951 186.6
1952 169.7
1953 186.6
1959 129.7
1960 126.7
1961 123.9
1962 121
1963 118.2
1964 115.4
1965 112.6
1966 109.6
1967 106.5
1968 103.2
1969 99.9
1970 96.5
1971 93.1
1972 89.6
1973 86
1974 82.2
1975 78.1
1976 73.9
1977 69.6
1978 65.4
1979 61.2
1980 57.4
1981 53.8
1982 50.5
1983 47.5
1984 44.8
1985 42.5
1986 40.6
1987 38.9
1988 37.5
1989 36.3
1990 35.2
1991 34.2
1992 33.2
1993 32.1
1994 31.1
1995 30
1996 28.9
1997 27.9
1998 26.9
1999 26
2000 25.1
2001 24.3
2002 23.6
2003 22.9
2004 22.3
2005 21.6
2006 21
2007 20.4
2008 19.8
2009 19.2
2010 18.6
2011 18
2012 17.4
2013 16.9