Year Total 1801 0.1043 1802 0.1043 1803 0.1043 1804 0.1043 1805 0.1043 1806 0.1043 1807 0.1043 1808 0.1043 1809 0.1043 1810 0.1043 1811 0.1043 1812 0.1043 1813 0.1043 1814 0.1043 1815 0.1043 1816 0.1043 1817 0.1043 1818 0.1043 1819 0.1043 1820 0.1043 1821 1.568 1822 1.568 1823 1.568 1824 1.568 1825 1.568 1826 1.568 1827 1.568 1828 1.568 1829 1.568 1830 1.568 1831 1.568 1832 1.568 1833 1.568 1834 1.568 1835 1.568 1836 1.568 1837 1.568 1838 1.568 1839 1.568 1840 1.568 1841 1.568 1842 1.568 1843 1.568 1844 1.568 1845 1.568 1846 1.568 1847 1.568 1848 1.568 1849 1.568 1850 1.568 1851 1.568 1852 1.568 1853 1.568 1854 1.568 1855 1.568 1856 1.568 1857 1.568 1858 1.568 1859 1.568 1860 1.568 1861 1.568 1862 1.568 1863 1.568 1864 1.568 1865 1.568 1866 1.568 1867 1.568 1868 1.568 1869 1.568 1870 1.568 1871 1.568 1872 1.568 1873 1.568 1874 1.568 1875 1.568 1876 1.568 1877 1.568 1878 1.568 1879 1.568 1880 1.568 1881 1.568 1882 1.568 1883 1.568 1884 1.568 1885 1.568 1886 -2.969 1887 18.02 1888 -2.91 1889 -6.152 1890 0.5133 1891 -7.552 1892 10.49 1893 14.38 1894 14.75 1895 -6.603 1896 11.16 1897 -0.7606 1898 3.613 1899 7.099 1900 -1.24 1901 3.447 1902 9.675 1903 -6.035 1904 11.61 1905 -10.67 1906 -3.537 1907 -3.017 1908 10.22 1909 4.788 1910 7.695 1911 -6.753 1912 9.049 1913 6.029 1914 -3.621 1915 3.874 1916 -10.27 1917 -11.38 1918 -38.21 1919 -12.99 1920 1.337 1921 -7.618 1922 17.16 1923 16.25 1924 27.87 1925 26.13 1926 13.32 1927 5.138 1928 6.137 1929 2.103 1930 5.485 1931 1.843 1932 -0.6288 1933 4.725 1934 10.19 1935 15.4 1936 7.794 1937 9.302 1938 0.6444 1939 5.017 1940 -3.275 1941 -0.9654 1942 -0.9654 1943 -0.9654 1944 -0.9654 1945 -0.9654 1946 -0.9654 1947 12.14 1948 14.03 1949 10.24 1950 9.323 1951 0.2031 1952 6.218 1953 4.1 1954 4.598 1955 8.157 1956 9.125 1957 1.597 1958 6.998 1959 -1.623 1960 8.882 1961 5.159 1962 2.273 1963 -2.6 1964 12.64 1965 5.485 1966 4.674 1967 4.237 1968 5.689 1969 1.256 1970 7.532 1971 2.447 1972 0.3319 1973 8.163 1974 3.049 1975 0.3553 1976 4.704 1977 2.32 1978 2.448 1979 -0.5241 1980 0.09689 1981 0.8838 1982 2.412 1983 3.123 1984 1.117 1985 0.7776 1986 3.999 1987 1.199 1988 2.045 1989 1.652 1990 -2.511 1991 -8.853 1992 -10.19 1993 -14.38 1994 -22.78 1995 -11.97 1996 -9.849 1997 -2.977 1998 -2.002 1999 -0.2872 2000 5.909 2001 9.318 2002 5.277 2003 9.403 2004 12.08 2005 2.615 2006 7.441 2007 7.537 2008 2.259 2009 -14.89 2010 3.901 2011 4.999 2012 -0.08387 2013 -0.3158