Year Years
1800 371.6
1801 371.6
1802 371.6
1803 371.6
1804 371.6
1805 371.6
1806 371.6
1807 371.6
1808 371.6
1809 371.6
1810 371.6
1811 371.6
1812 371.6
1813 371.6
1814 371.6
1815 371.6
1816 371.6
1817 371.6
1818 371.6
1819 371.6
1820 371.6
1821 371.6
1822 371.6
1823 371.6
1824 371.6
1825 371.6
1826 371.6
1827 371.6
1828 371.6
1829 371.6
1830 371.6
1831 371.6
1832 371.6
1833 371.6
1834 371.6
1835 371.6
1836 371.6
1837 371.6
1838 371.6
1839 371.6
1840 371.6
1841 371.6
1842 371.6
1843 371.6
1844 371.6
1845 371.6
1846 371.6
1847 371.6
1848 371.6
1849 371.6
1850 371.6
1851 371.6
1852 371.6
1853 371.6
1854 371.6
1864 398
1865 356.1
1866 388.4
1867 315.5
1868 330.1
1869 313.9
1870 258.5
1871 231.5
1872 322
1873 310.6
1874 348
1875 330.1
1876 318.8
1877 309
1878 364.1
1879 300.8
1880 373.8
1881 287.7
1882 323.6
1883 284.4
1884 289.3
1885 276.2
1886 297.5
1887 313.9
1888 323.6
1889 310.6
1890 343.1
1891 339.9
1892 394.8
1893 352.8
1894 368.9
1895 326.9
1896 373.8
1897 349.6
1898 360.9
1899 322
1900 320.4
1901 328.5
1902 344.7
1903 477.4
1912 351.2
1913 378.6
1914 352.8
1915 323.6
1920 359.3
1921 325.3
1922 336.6
1923 336.6
1924 326.9
1925 312.3
1926 315.5
1927 339.9
1928 299.1
1929 320.4
1930 286
1931 292.6
1932 300.8
1933 282.7
1934 295.9
1935 312.3
1936 284.4
1937 289.3
1938 297.5
1939 286
1940 305.7
1941 270.1
1942 289.3
1943 299.1
1944 263.5
1945 305.7
1946 266.8
1947 325.3
1948 229.6
1949 216.6
1950 180.9
1951 182.8
1952 158.5
1953 142
1954 129.4
1955 110.3
1956 117.2
1957 115.4
1958 95.24
1959 106.9
1960 95.24
1961 86
1962 76.7
1963 77
1964 77.1
1965 77
1966 76.2
1967 74.8
1968 72.5
1969 69.3
1970 65.5
1971 61.7
1972 58.3
1973 55.2
1974 52.6
1975 50.4
1976 48.5
1977 46.7
1978 45.1
1979 43.5
1980 42
1981 40.6
1982 39.5
1983 38.8
1984 38.6
1985 38.9
1986 39.4
1987 39.8
1988 39.7
1989 38.9
1990 37.7
1991 36.4
1992 35.2
1993 34.1
1994 33.2
1995 32.3
1996 31.4
1997 30.4
1998 29.2
1999 28.1
2000 27
2001 25.9
2002 24.9
2003 23.7
2004 22.4
2005 20.8
2006 19.2
2007 17.6
2008 16.1
2009 14.9
2010 13.9
2011 13.2
2012 12.5
2013 12