Year Total 1801 0.5716 1802 0.5716 1803 0.5716 1804 0.5716 1805 0.5716 1806 0.5716 1807 0.5716 1808 0.5716 1809 0.5716 1810 0.5715 1811 0.5716 1812 0.5715 1813 0.5716 1814 0.5716 1815 0.5716 1816 0.5716 1817 0.5715 1818 0.5716 1819 0.5716 1820 0.5716 1821 0.9281 1822 0.9281 1823 0.9281 1824 0.9281 1825 0.9281 1826 0.9281 1827 0.9281 1828 0.9281 1829 0.9281 1830 0.9281 1831 0.9281 1832 0.9281 1833 0.9281 1834 0.9281 1835 0.9281 1836 0.9281 1837 0.9281 1838 0.9281 1839 0.9281 1840 0.9281 1841 0.9281 1842 0.9281 1843 0.9281 1844 0.9281 1845 0.9281 1846 0.9281 1847 0.9281 1848 0.9281 1849 0.9281 1850 0.9281 1851 0.6492 1852 0.6492 1853 0.6491 1854 0.6492 1855 0.6492 1856 0.6492 1857 0.6492 1858 0.6491 1859 0.6492 1860 0.6492 1861 0.6492 1862 0.6492 1863 0.6492 1864 0.6492 1865 0.6492 1866 0.6492 1867 0.6492 1868 0.6492 1869 0.6492 1870 0.6492 1871 2.965 1872 2.965 1873 2.965 1874 2.965 1875 2.965 1876 2.965 1877 2.965 1878 2.965 1879 2.965 1880 2.965 1881 2.965 1882 2.965 1883 2.965 1884 2.965 1885 2.965 1886 2.965 1887 2.965 1888 2.965 1889 2.965 1890 2.965 1891 2.303 1892 2.303 1893 2.303 1894 2.303 1895 2.303 1896 2.303 1897 2.303 1898 2.303 1899 2.303 1900 2.303 1901 3.01 1902 3.01 1903 3.01 1904 3.01 1905 3.01 1906 3.01 1907 3.01 1908 3.01 1909 3.01 1910 3.01 1911 3.232 1912 3.232 1913 3.232 1914 -3.663 1915 -3.663 1916 -3.663 1917 -3.663 1918 -3.663 1919 -3.663 1920 -3.663 1921 -3.219 1922 -2.665 1923 -2.651 1924 -2.675 1925 3.608 1926 29.39 1927 9.042 1928 -1.579 1929 -1.906 1930 10.22 1931 14.66 1932 0.6472 1933 1.688 1934 -8.538 1935 -4.581 1936 21.83 1937 5.651 1938 2.604 1939 1.235 1940 -2.642 1941 1.949 1942 -4.778 1943 3.154 1944 -7.575 1945 -22.03 1946 9.918 1947 10 1948 10.03 1949 10 1950 9.855 1951 20.97 1952 -4.249 1953 10.9 1954 -2.123 1955 7.007 1956 0.00389 1957 10.57 1958 8.684 1959 8.039 1960 9.537 1961 6.472 1962 8.207 1963 4.593 1964 7.865 1965 6.085 1966 7.954 1967 5.462 1968 1.809 1969 4.751 1970 5.666 1971 3.318 1972 4.857 1973 3.976 1974 2.967 1975 8.188 1976 2.992 1977 -1.103 1978 2.391 1979 4.049 1980 -2.938 1981 2.671 1982 3.276 1983 -1.835 1984 3.286 1985 -3.113 1986 2.427 1987 -0.1089 1988 -1.023 1989 -2.33 1990 -10.55 1991 -7.929 1992 -7.067 1993 -0.1493 1994 1.669 1995 2.965 1996 -9.265 1997 -5.354 1998 4.361 1999 2.514 2000 5.604 2001 4.41 2002 5.215 2003 4.608 2004 6.899 2005 6.555 2006 6.372 2007 6.307 2008 5.977 2009 -5.55 2010 0.5314 2011 3.639 2012 0.5545 2013 0.8064