Year Years
1800 348.2
1801 348.2
1802 348.2
1803 348.2
1804 348.2
1805 348.2
1806 348.2
1807 348.2
1808 348.2
1809 348.2
1810 348.2
1811 348.2
1812 348.2
1813 348.2
1814 348.2
1815 348.2
1816 348.2
1817 348.2
1818 348.2
1819 348.2
1820 348.2
1821 348.2
1822 348.2
1823 348.2
1824 348.2
1825 348.2
1826 348.2
1827 348.2
1828 348.2
1829 348.2
1830 348.2
1831 348.2
1832 348.2
1833 348.2
1834 348.2
1835 348.2
1836 348.2
1837 348.2
1838 348.2
1839 348.2
1840 348.2
1841 348.2
1842 348.2
1843 348.2
1844 348.2
1845 348.2
1846 515.4
1847 443.8
1848 587.1
1849 597.6
1850 380
1851 348.2
1852 348.2
1853 348.2
1854 348.2
1864 145.6
1865 145.6
1866 138.4
1867 143.8
1868 140.2
1869 136.6
1870 140.2
1871 133
1872 143.8
1873 142
1874 138.4
1875 140.2
1876 138.4
1877 134.8
1878 143.8
1879 151.1
1880 171.6
1881 133
1882 140.2
1883 145.6
1884 134.8
1885 140.2
1886 138.4
1887 140.2
1888 143.8
1889 138.4
1890 140.2
1891 140.2
1892 158.5
1893 152.9
1894 152.9
1895 156.7
1896 140.2
1897 165.9
1898 167.8
1899 164.1
1900 165.9
1901 151.1
1902 149.3
1903 142
1904 149.3
1905 140.2
1906 136.6
1907 134.8
1908 143.8
1909 134.8
1910 140.2
1911 138.4
1912 124.1
1913 143.8
1914 125.9
1915 134.8
1916 118.9
1917 127.7
1918 124.1
1919 127.7
1920 118.9
1922 95.24
1923 90.4
1924 100.2
1925 93.6
1926 103.5
1927 98.52
1928 93.6
1929 96.88
1930 93.6
1931 95.24
1932 100.2
1933 88.79
1934 85.73
1935 93.6
1936 103.5
1937 101.8
1938 91.99
1939 90.4
1940 90.4
1941 103.5
1942 95.24
1943 118.9
1944 112
1945 98.52
1946 88.79
1947 93.6
1948 59.3
1949 56.6
1950 54.2
1951 51.9
1952 49.5
1953 47.1
1954 44.9
1955 43
1956 41.3
1957 39.7
1958 38.2
1959 36.8
1960 35.3
1961 33.9
1962 32.5
1963 31.3
1964 30.1
1965 28.6
1966 27
1967 25.5
1968 24.1
1969 23
1970 22.2
1971 21.7
1972 21.4
1973 21.1
1974 20.6
1975 20
1976 19.1
1977 18
1978 16.8
1979 15.5
1980 14.3
1981 13.3
1982 12.4
1983 11.7
1984 11.1
1985 10.7
1986 10.4
1987 10.1
1988 9.9
1989 9.6
1990 9.2
1991 8.6
1992 8.1
1993 7.7
1994 7.4
1995 7.3
1996 7.3
1997 7.3
1998 7.3
1999 7.3
2000 7.2
2001 6.9
2002 6.5
2003 6.1
2004 5.6
2005 5.2
2006 4.9
2007 4.6
2008 4.4
2009 4.3
2010 4.2
2011 4.1
2012 3.9
2013 3.8