Year Years 1800 380 1801 380 1802 380 1803 380 1804 380 1805 380 1806 380 1807 380 1808 380 1809 380 1810 380 1811 380 1812 380 1813 380 1814 380 1815 380 1816 380 1817 380 1818 380 1819 380 1820 380 1821 380 1822 380 1823 380 1824 380 1825 380 1826 380 1827 380 1828 380 1829 380 1830 380 1831 380 1832 380 1833 380 1834 380 1835 380 1836 380 1837 380 1838 380 1839 380 1840 380 1841 380 1842 380 1843 380 1844 380 1845 380 1846 380 1847 380 1848 380 1849 380 1850 380 1851 380 1852 380 1853 380 1854 380 1855 380 1856 380 1857 380 1858 380 1859 380 1860 380 1861 380 1862 380 1863 380 1864 380 1865 380 1866 380 1867 380 1868 380 1869 380 1870 380 1871 380 1872 380 1873 380 1874 380 1875 380 1876 380 1877 380 1878 380 1879 380 1880 380 1881 380 1882 380 1883 380 1884 380 1885 380 1886 380 1887 380 1888 380 1889 380 1890 380 1891 380 1892 380 1893 380 1894 380 1895 379.9 1896 379.9 1897 379.8 1898 379.6 1899 379.4 1900 379.2 1901 378.8 1902 378.5 1903 378 1904 377.5 1905 376.9 1906 376.3 1907 375.6 1908 374.9 1909 374.1 1910 373.3 1911 372.4 1912 371.5 1913 370.6 1914 369.7 1915 368.9 1916 368 1917 367.1 1918 366.2 1919 365.3 1920 364.4 1921 363.5 1922 362.6 1923 361.7 1924 360.8 1925 359.9 1926 359 1927 358.1 1928 357.2 1929 356.4 1930 355.5 1931 354.6 1932 353.7 1933 352.8 1934 351.9 1935 351 1936 350.1 1937 349.2 1938 348.3 1939 347.4 1940 346.6 1941 345.7 1942 344.8 1943 343.9 1944 343 1945 342.1 1946 330.4 1947 320.1 1948 309 1949 299.1 1950 288.4 1951 286.7 1952 283 1953 280 1954 276.6 1955 273.8 1956 270.7 1957 267.2 1958 263.4 1959 259.6 1960 255.9 1961 252.1 1962 247.4 1963 242.8 1964 238.1 1965 233.4 1970 225 1975 309 1976 289.1 1977 268.8 1978 244.6 1979 215.8 1980 186.8 1981 162.1 1982 143.3 1983 130.7 1984 123.9 1985 120.9 1986 119.7 1987 118.8 1988 118.1 1989 117.7 1990 117.5 1991 117.6 1992 118.2 1993 119.1 1994 120.4 1995 121.9 1996 123.1 1997 123.6 1998 122.1 1999 117.8 2000 110.5 2001 100.8 2002 89.7 2003 79.2 2004 70.5 2005 63.6 2006 57.9 2007 53.4 2008 49.5 2009 46.4 2010 43.8 2011 41.6 2012 39.7 2013 37.9