Year Years
1800 450.6
1801 450.6
1802 450.6
1803 450.6
1804 450.6
1805 449.2
1806 449.2
1807 449.2
1808 449.2
1809 449.2
1810 449.2
1811 449.2
1812 449.2
1813 449.2
1814 449.2
1815 447.9
1816 447.9
1817 447.9
1818 447.9
1819 447.9
1820 447.9
1821 447.9
1822 447.9
1823 447.9
1824 447.9
1825 446.5
1826 446.5
1827 446.5
1828 446.5
1829 446.5
1830 446.5
1831 446.5
1832 446.5
1833 446.5
1834 445.1
1835 445.1
1836 445.1
1837 445.1
1838 445.1
1839 445.1
1840 445.1
1841 445.1
1842 445.1
1843 445.1
1844 443.8
1845 443.8
1846 443.8
1847 443.8
1848 443.8
1849 443.8
1850 443.8
1851 443.8
1852 443.8
1853 443.8
1854 442.5
1855 442.5
1856 442.5
1857 442.5
1858 442.5
1859 442.5
1860 442.5
1861 442.5
1862 442.5
1863 441.1
1864 441.1
1865 441.1
1866 441.1
1867 441.1
1868 441.1
1869 441.1
1870 441.1
1871 441.1
1872 441.1
1873 439.8
1874 439.8
1875 439.8
1876 439.8
1877 439.8
1878 439.8
1879 439.8
1880 439.8
1881 439.8
1882 439.8
1883 438.5
1884 438.5
1885 438.5
1886 438.5
1887 438.5
1888 438.5
1889 438.5
1890 438.5
1891 438.5
1892 437.1
1893 437.1
1894 437.1
1895 437.1
1896 437
1897 436.9
1898 436.7
1899 436.5
1900 436.2
1901 435.8
1902 434
1903 433.5
1904 432.9
1905 432.3
1906 431.6
1907 430.8
1908 429.9
1909 429
1910 428.1
1911 427.1
1912 424.8
1913 423.8
1914 422.7
1915 421.7
1916 420.7
1917 419.7
1918 418.7
1919 417.6
1920 416.6
1921 414.3
1922 413.3
1923 412.3
1924 411.3
1925 410.3
1926 409.2
1927 408.2
1928 407.2
1929 406.2
1930 405.2
1931 402.9
1932 401.9
1933 400.9
1934 399.9
1935 398.9
1936 397.9
1937 396.8
1938 395.8
1939 394.8
1940 393.8
1941 391.6
1942 390.6
1943 389.6
1944 388.5
1945 387.5
1946 383
1947 378.5
1948 374
1949 369.6
1950 362.2
1951 362.2
1952 362.1
1953 361.7
1954 361
1955 360.1
1956 358.9
1957 357.7
1958 356
1959 354.1
1960 352.2
1961 350.1
1962 347.9
1963 345.6
1964 342.8
1965 340.2
1966 337.5
1967 334.8
1968 331.9
1969 328.8
1970 325.8
1971 322.6
1972 319.3
1973 316
1974 312.4
1975 308.7
1976 304.6
1977 300.2
1978 295.6
1979 290.8
1980 285.9
1981 281.1
1982 276.3
1983 271.8
1984 267.1
1985 262.5
1986 257.8
1987 253
1988 248.2
1989 243
1990 237.6
1991 231.9
1992 225.6
1993 219.1
1994 212.4
1995 205.6
1996 198.6
1997 191.7
1998 184.7
1999 177.5
2000 170.2
2001 162.9
2002 155.8
2003 149
2004 142.8
2005 136.9
2006 131.4
2007 126.2
2008 121.3
2009 116.7
2010 112.2
2011 108.1
2012 104.4
2013 100.7