Year Total 1801 -0.03805 1802 -0.03807 1803 -0.03809 1804 -0.03805 1805 -4.887 1806 0.4005 1807 8.805 1808 -12.11 1809 -1.933 1810 10.95 1811 -20.4 1812 1.658 1813 26.38 1814 1.624 1815 -16.6 1816 4.639 1817 4.337 1818 6.469 1819 -13.19 1820 -0.8314 1821 19.19 1822 -5.775 1823 1.858 1824 1.858 1825 1.858 1826 1.858 1827 1.46 1828 1.46 1829 1.46 1830 -3.834 1831 -3.834 1832 0.3354 1833 0.3355 1834 0.3355 1835 0.3355 1836 0.3355 1837 0.3354 1838 0.3355 1839 0.3355 1840 0.3355 1841 -1.373 1842 -1.373 1843 -1.373 1844 -2.773 1845 -2.773 1846 -2.773 1847 -2.773 1848 4.632 1849 4.632 1850 4.632 1851 19.59 1852 5.902 1853 8.449 1854 -1.817 1855 8.458 1856 -18.65 1857 19.57 1858 -11.64 1859 4.244 1860 4.632 1861 -4.911 1862 -25.61 1863 7.905 1864 40.96 1865 -25.61 1866 4.968 1867 21.05 1868 3.265 1869 0.9825 1870 8.48 1871 3.533 1872 52.18 1873 -11.02 1874 -1.588 1875 15.11 1876 15.46 1877 -2.648 1878 0.7792 1879 14.46 1880 19.34 1881 -2.42 1882 -2.181 1883 -20.6 1884 -6.423 1885 -12.78 1886 21.93 1887 17.84 1888 16.46 1889 2.206 1890 4.025 1891 7.536 1892 0.7516 1893 2.3 1894 0.3519 1895 18.9 1896 7.847 1897 -3.409 1898 23.97 1899 -9.296 1900 -27.36 1901 11.12 1902 23.28 1903 38.38 1904 3.226 1905 10.22 1906 11.51 1907 1.348 1908 -18.95 1909 8.175 1910 3.264 1911 2.205 1912 2.205 1913 2.205 1914 2.316 1915 2.316 1916 2.316 1917 2.316 1918 2.316 1919 3.802 1920 3.802 1921 3.802 1922 3.802 1923 3.802 1924 3.802 1925 8.9 1926 4.884 1927 4.157 1928 9.928 1929 -0.216 1930 -3.55 1931 -3.457 1932 -1.72 1933 13.25 1934 13.24 1935 13.2 1936 11.83 1937 8.917 1938 -1.928 1939 7.251 1940 6.763 1941 4.899 1942 3.297 1943 2.459 1944 3.694 1945 2.77 1946 3.664 1947 1.167 1948 7.811 1949 1.422 1950 8.112 1951 4.53 1952 3.454 1953 4.583 1954 5.787 1955 4.914 1956 5.48 1957 3.754 1958 2.06 1959 4.467 1960 4.135 1961 4.329 1962 5.534 1963 7.247 1964 6.636 1965 5.862 1966 4.194 1967 6.664 1968 4.157 1969 5.99 1970 5.203 1971 4.97 1972 2.079 1973 4.38 1974 5.742 1975 1.959 1976 2.454 1977 -0.2022 1978 2.93 1979 3.904 1980 6.354 1981 4.688 1982 -0.9739 1983 -2.399 1984 4.377 1985 -1.987 1986 -0.1231 1987 1.772 1988 3.882 1989 1.98 1990 -0.8795 1991 -0.7156 1992 -1.644 1993 1.613 1994 3.832 1995 3.889 1996 4.857 1997 2.981 1998 0.6185 1999 2.504 2000 4.367 2001 3.01 2002 3.95 2003 3.225 2004 4.856 2005 5.523 2006 5.811 2007 5.683 2008 3.751 2009 -1.222 2010 3.559 2011 2.893 2012 1.662 2013 1.012