Year Years
1800 404.7
1801 404.7
1802 404.7
1803 404.7
1804 404.7
1805 404.7
1806 404.7
1807 404.7
1808 404.7
1809 404.7
1810 404.7
1811 404.7
1812 404.7
1813 404.7
1814 404.7
1815 404.7
1816 404.7
1817 404.7
1818 404.7
1819 404.7
1820 404.7
1821 404.7
1822 404.7
1823 404.7
1824 404.7
1825 404.7
1826 404.7
1827 404.7
1828 404.7
1829 404.7
1830 404.7
1831 404.7
1832 404.7
1833 404.7
1834 404.7
1835 404.7
1836 404.7
1837 404.7
1838 404.7
1839 404.7
1840 404.7
1841 404.7
1842 404.7
1843 404.7
1844 404.7
1845 404.7
1846 404.7
1847 404.7
1848 404.7
1849 404.7
1850 404.7
1851 404.7
1852 404.7
1853 404.7
1854 404.7
1855 404.7
1856 404.7
1857 404.7
1858 404.7
1859 404.7
1860 404.7
1861 404.7
1862 404.7
1863 404.7
1864 404.7
1865 404.7
1866 404.7
1867 404.7
1868 404.7
1869 404.7
1870 404.7
1871 404.7
1872 404.7
1873 404.7
1874 404.7
1875 404.7
1876 404.7
1877 404.7
1878 404.7
1879 404.7
1880 404.7
1881 404.7
1882 404.7
1883 404.7
1884 404.7
1885 404.7
1886 404.7
1887 404.7
1888 404.7
1889 404.7
1890 404.7
1891 404.7
1892 404.7
1893 404.7
1894 404.7
1895 404.6
1896 404.6
1897 404.5
1898 404.3
1899 404.1
1900 403.8
1901 403.5
1902 403.1
1903 402.6
1904 402
1905 401.4
1906 400.8
1907 400.1
1908 399.3
1909 398.4
1910 397.5
1911 396.6
1912 395.7
1913 394.7
1914 393.8
1915 392.8
1916 391.9
1917 390.9
1918 390
1919 389
1920 388.1
1921 387.1
1922 386.2
1923 385.2
1924 384.3
1925 383.3
1926 382.4
1927 381.4
1928 380.5
1929 379.5
1930 378.6
1931 377.6
1932 376.7
1933 375.7
1934 374.8
1935 373.8
1936 372.9
1937 371.9
1938 371
1939 370
1940 369.1
1956 366.8
1957 343.5
1958 321.4
1959 300.9
1960 281.5
1961 263.5
1962 246.4
1963 230
1964 214.4
1965 199.8
1966 185.9
1967 172.5
1968 159.8
1969 148
1970 137.2
1971 127.4
1972 118.2
1973 109.8
1974 102.4
1975 95.6
1976 89.6
1977 84.2
1978 79.4
1979 75.1
1980 71.1
1981 67.5
1982 64.2
1983 61.1
1984 58
1985 55.1
1986 52.4
1987 49.7
1988 47.1
1989 44.7
1990 42.4
1991 40.4
1992 38.5
1993 36.8
1994 35.2
1995 33.8
1996 32.6
1997 31.4
1998 30.3
1999 29.3
2000 28.4
2001 27.4
2002 26.5
2003 25.5
2004 24.4
2005 23.1
2006 21.7
2007 20.2
2008 18.8
2009 17.7
2010 16.7
2011 15.9
2012 15.2
2013 14.5