Year Total 1801 1.491 1802 1.583 1803 -2.003 1804 -0.2185 1805 5.829 1806 -0.579 1807 6.41 1808 -4.712 1809 3.094 1810 6.445 1811 -0.8905 1812 -4.181 1813 5.308 1814 -2.318 1815 10.49 1816 -5.45 1817 1.563 1818 -0.1657 1819 -1.626 1820 8.086 1821 1.547 1822 1.675 1823 2.752 1824 5.436 1825 2.277 1826 -5.253 1827 7.719 1828 0.2028 1829 0.7847 1830 4.493 1831 1.161 1832 3.066 1833 0.7799 1834 2.282 1835 7.297 1836 3.161 1837 -0.9734 1838 3.838 1839 -0.9533 1840 4.663 1841 -2.053 1842 -1.003 1843 4.776 1844 8.723 1845 4.484 1846 -0.1265 1847 -2.099 1848 2.832 1849 1.494 1850 -1.934 1851 3.451 1852 4.487 1853 3.587 1854 4.98 1855 -2.038 1856 6.971 1857 1.172 1858 -1.764 1859 4.226 1860 2.166 1861 -0.1753 1862 -4.088 1863 9.543 1864 2.824 1865 2.569 1866 3.295 1867 0.5785 1868 5.028 1869 1.056 1870 4.587 1871 5.477 1872 0.1583 1873 1.174 1874 4.161 1875 1.317 1876 0.8623 1877 0.751 1878 0.4725 1879 -1.734 1880 7.351 1881 2.424 1882 1.849 1883 3.225 1884 -0.6975 1885 -0.5825 1886 0.7882 1887 4.226 1888 3.317 1889 3.409 1890 1.051 1891 2.502 1892 -1.799 1893 -0.4902 1894 4.745 1895 3.451 1896 4.385 1897 1.245 1898 4.608 1899 3.68 1900 -0.1843 1901 2.226 1902 1.597 1903 -0.8289 1904 1.238 1905 3.015 1906 2.581 1907 1.988 1908 -3.649 1909 2.43 1910 2.705 1911 3.366 1912 1.504 1913 4.218 1914 2.089 1915 5.55 1916 1.173 1917 -0.5961 1918 1.904 1919 -7.967 1920 -3.369 1921 -9.711 1922 5.309 1923 2.963 1924 4.72 1925 3.519 1926 -3.12 1927 7.69 1928 0.8927 1929 2.853 1930 -0.7957 1931 -4.639 1932 0.06811 1933 3.18 1934 5.967 1935 3.698 1936 4.769 1937 3.5 1938 0.776 1939 4.4 1940 9.923 1941 8.707 1942 1.793 1943 1.718 1944 -4.4 1945 -4.573 1946 -1.904 1947 -1.378 1948 3.029 1949 3.325 1950 3.285 1951 2.738 1952 -0.1181 1953 3.798 1954 4.082 1955 3.484 1956 0.8916 1957 1.648 1958 0.4147 1959 4.261 1960 5.146 1961 2.165 1962 0.862 1963 4.381 1964 5.481 1965 2.206 1966 1.968 1967 2.414 1968 4.209 1969 2.042 1970 2.302 1971 1.874 1972 3.609 1973 7.18 1974 -1.18 1975 -0.4912 1976 2.725 1977 2.453 1978 3.26 1979 2.569 1980 -2.227 1981 -1.344 1982 2.255 1983 3.648 1984 2.606 1985 3.481 1986 3.969 1987 4.582 1988 5.099 1989 2.275 1990 0.7711 1991 -1.473 1992 0.1641 1993 2.271 1994 4.297 1995 3.044 1996 2.922 1997 3.444 1998 3.854 1999 3.61 2000 4.459 2001 3.144 2002 2.721 2003 3.579 2004 2.951 2005 1.946 2006 2.584 2007 3.392 2008 -1.163 2009 -4.391 2010 1.753 2011 0.8414 2012 0.1979 2013 1.76