Year Years
1800 366.8
1801 366.8
1802 366.8
1803 366.8
1804 366.8
1805 366.8
1806 366.8
1807 366.8
1808 366.8
1809 366.8
1810 366.8
1811 366.8
1812 366.8
1813 366.8
1814 366.8
1815 366.8
1816 366.8
1817 366.8
1818 366.8
1819 366.8
1820 366.8
1821 366.8
1822 366.8
1823 366.8
1824 366.8
1825 366.8
1826 366.8
1827 366.8
1828 366.8
1829 366.8
1830 366.8
1831 366.8
1832 366.8
1833 366.8
1834 366.8
1835 366.8
1836 366.8
1837 366.8
1838 366.8
1839 366.8
1840 366.8
1841 366.8
1842 366.8
1843 366.8
1844 366.8
1845 366.8
1846 366.8
1847 366.8
1848 366.8
1849 366.8
1850 366.8
1851 366.8
1852 366.8
1853 366.8
1854 366.8
1855 366.8
1856 366.8
1857 366.8
1858 366.8
1859 366.8
1860 366.8
1861 366.8
1862 366.8
1863 366.8
1864 366.8
1865 366.8
1866 366.8
1867 366.8
1868 366.8
1869 366.8
1870 366.8
1871 366.8
1872 366.8
1873 366.8
1874 366.8
1875 366.8
1876 366.8
1877 366.8
1878 366.8
1879 366.8
1880 366.8
1881 366.8
1882 366.8
1883 366.8
1884 366.8
1885 366.8
1886 366.8
1887 366.8
1888 366.8
1889 366.8
1890 366.8
1891 366.8
1892 366.8
1893 366.8
1894 366.8
1895 366.8
1896 366.7
1897 366.6
1898 366.5
1899 366.3
1900 366.1
1901 365.7
1902 365.4
1903 364.9
1904 364.4
1905 363.9
1906 363.3
1907 362.6
1908 361.9
1909 361.1
1910 360.4
1911 359.5
1912 358.7
1913 357.8
1914 356.9
1915 356.1
1916 355.2
1917 354.4
1918 353.5
1919 352.6
1920 351.8
1921 341.9
1922 332.3
1923 322.8
1924 313.5
1925 304.3
1926 295.4
1927 286.6
1928 277.9
1929 269.4
1930 260.1
1931 251.9
1932 243.9
1933 236
1934 228.2
1935 220.6
1936 213.1
1937 205.7
1938 198.5
1939 191.4
1940 184.5
1941 177.6
1942 170.9
1943 164.3
1944 157.8
1945 151.4
1946 145.2
1947 139.1
1948 133.1
1949 127.2
1950 120.8
1960 96.88
1970 42.74
1980 25.3
1981 21.8
1982 20.9
1983 20
1984 19.1
1985 18.1
1986 17
1987 15.8
1988 14.8
1989 13.7
1990 12.8
1991 12.1
1992 11.4
1993 10.9
1994 10.4
1995 10
1996 9.6
1997 9.3
1998 8.9
1999 8.6
2000 8.3
2001 8
2002 7.7
2003 7.4
2004 7.1
2005 6.8
2006 6.5
2007 6.2
2008 5.9
2009 5.6
2010 5.3
2011 5
2012 4.7
2013 4.5