Year Total 1801 0.07794 1802 0.07791 1803 0.07793 1804 0.0779 1805 0.07792 1806 0.07789 1807 0.07795 1808 -10.55 1809 -0.9945 1810 15.1 1811 1.527 1812 -12.63 1813 -9.671 1814 -3.175 1815 32.93 1816 -4.48 1817 1.327 1818 1.937 1819 -4.342 1820 7.552 1821 -0.8399 1822 2.26 1823 6.353 1824 0.7191 1825 -1.155 1826 2.592 1827 6.49 1828 2.953 1829 0.968 1830 -8.067 1831 8.122 1832 4.998 1833 -1.758 1834 1.626 1835 0.4581 1836 4.291 1837 3.268 1838 1.973 1839 0.9277 1840 1.963 1841 2.049 1842 -1.589 1843 -0.9567 1844 1.892 1845 0.1859 1846 0.7233 1847 0.568 1848 1.412 1849 3.038 1850 2.46 1851 2.423 1852 -0.2429 1853 -1.599 1854 6.765 1855 -2.393 1856 4.437 1857 -1.198 1858 -2.413 1859 -3.448 1860 5.078 1861 -2.279 1862 4.605 1863 2.646 1864 4.858 1865 0.8629 1866 4.309 1867 -2.88 1868 1.395 1869 4.026 1870 4.027 1871 -0.2326 1872 1.496 1873 1.956 1874 -2.101 1875 6.63 1876 1.077 1877 2.209 1878 -1.872 1879 -1.45 1880 6.935 1881 1.158 1882 2.317 1883 7.189 1884 1.421 1885 1.883 1886 1.204 1887 2.203 1888 1.05 1889 3.178 1890 -4.387 1891 -0.1199 1892 2.626 1893 -1.415 1894 5.56 1895 0.2458 1896 3.853 1897 2.25 1898 1.235 1899 1.105 1900 -1.368 1901 4.642 1902 4.017 1903 -0.3344 1904 1.106 1905 4.738 1906 1.759 1907 -2.112 1908 1.65 1909 5.043 1910 3.775 1911 3.531 1912 3.204 1913 5.37 1914 -0.637 1915 -3.226 1916 0.4938 1917 -9.343 1918 -5.797 1919 12.44 1920 14.54 1921 18.46 1922 6.915 1923 2.532 1924 7.425 1925 3.552 1926 7.113 1927 4.976 1928 4.568 1929 2.128 1930 -1.022 1931 -3.369 1932 -0.8286 1933 0.7033 1934 -0.7157 1935 3.042 1936 5.878 1937 6.08 1938 -2.733 1939 8.723 1940 -11.77 1941 -5.062 1942 -8.391 1943 -2.112 1944 -32.96 1945 2.636 1946 70.61 1947 16.36 1948 11.21 1949 7.628 1950 3.677 1951 2.458 1952 2.134 1953 9.046 1954 7.448 1955 7.552 1956 4.909 1957 3.424 1958 -0.8326 1959 4.993 1960 9.599 1961 3.296 1962 4.612 1963 3.666 1964 9.04 1965 5.61 1966 3.107 1967 5.777 1968 7.25 1969 7.191 1970 5.943 1971 4.636 1972 3.051 1973 5.423 1974 4.594 1975 0.4827 1976 4.881 1977 3.003 1978 2.925 1979 2.095 1980 1.832 1981 -0.3247 1982 -0.9492 1983 2.241 1984 3.536 1985 3.081 1986 3.432 1987 2.111 1988 3.694 1989 4.78 1990 4.517 1991 2.637 1992 2.032 1993 1.687 1994 3.381 1995 3.597 1996 3.993 1997 4.643 1998 4.207 1999 4.911 2000 4.037 2001 2.042 2002 0.3522 2003 0.7154 2004 2.727 2005 2.089 2006 3.689 2007 4.107 2008 1.777 2009 -3.832 2010 1.437 2011 0.8333 2012 -1.315 2013 -0.7734