Year Years 1800 445.1 1801 445.1 1802 445.1 1803 445.1 1804 445.1 1805 445.1 1806 445.1 1807 445.1 1808 445.1 1809 445.1 1810 445.1 1811 445.1 1812 445.1 1813 445.1 1814 445.1 1815 445.1 1816 445.1 1817 445.1 1818 445.1 1819 445.1 1820 445.1 1821 445.1 1822 445.1 1823 445.1 1824 445.1 1825 445.1 1826 445.1 1827 445.1 1828 445.1 1829 445.1 1830 445.1 1831 445.1 1832 445.1 1833 445.1 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 445.1 1845 445.1 1846 445.1 1847 445.1 1848 445.1 1849 445.1 1850 445.1 1851 445.1 1852 445.1 1853 445.1 1854 445.1 1855 445.1 1856 445.1 1857 445.1 1858 445.1 1859 445.1 1860 445.1 1861 445.1 1862 445.1 1863 445.1 1864 445.1 1865 445.1 1866 445.1 1867 445.1 1868 445.1 1869 445.1 1870 445.1 1871 445.1 1872 445.1 1873 445.1 1874 445.1 1875 445.1 1876 445.1 1877 445.1 1878 445.1 1879 445.1 1880 445.1 1881 445.1 1882 445.1 1883 445.1 1884 445.1 1885 445.1 1886 445.1 1887 445.1 1888 445.1 1889 445.1 1890 445.1 1891 445.1 1892 445.1 1893 445.1 1894 445.1 1895 445.1 1896 445 1897 444.9 1898 444.8 1899 444.5 1900 444.2 1901 443.8 1902 443.4 1903 442.8 1904 442.2 1905 441.6 1906 440.9 1907 440.1 1908 439.2 1909 438.2 1910 437.3 1911 436.3 1912 435.2 1913 434.2 1914 433.1 1915 432.1 1916 431.1 1917 430 1918 429 1919 427.9 1920 426.9 1921 425.8 1922 424.8 1923 423.7 1924 422.7 1925 421.6 1926 420.6 1927 419.6 1928 418.5 1929 417.5 1930 416.4 1931 415.4 1932 414.3 1933 413.3 1934 412.2 1935 411.2 1936 397.9 1937 386 1938 373.3 1939 362 1940 349.9 1950 172.4 1951 170.6 1952 169 1953 167.4 1954 165.8 1955 164.1 1956 162.3 1957 160.3 1958 158.2 1959 155.8 1960 153.2 1961 150.3 1962 147.2 1963 144 1964 140.6 1965 137.2 1966 133.9 1967 130.7 1968 127.6 1969 124.5 1970 121.4 1971 118.2 1972 114.9 1973 111.6 1974 108.1 1975 104.6 1976 101.2 1977 97.7 1978 94.3 1979 91 1980 87.7 1981 84.4 1982 81.2 1983 78.1 1984 75.2 1985 72.3 1986 69.6 1987 67 1988 64.4 1989 62 1990 59.7 1991 57.4 1992 55.2 1993 53 1994 51 1995 49.1 1996 47.3 1997 45.6 1998 44 1999 42.5 2000 41.1 2001 39.9 2002 38.7 2003 37.5 2004 36.5 2005 35.4 2006 34.5 2007 33.5 2008 32.6 2009 31.6 2010 30.7 2011 29.9 2012 29 2013 28.1