Year Total 1801 0.1039 1802 0.1039 1803 0.1039 1804 0.1039 1805 0.1039 1806 0.1039 1807 0.1039 1808 0.1039 1809 0.1039 1810 0.1039 1811 0.1039 1812 0.1039 1813 0.1039 1814 0.1039 1815 0.1039 1816 0.1039 1817 0.1039 1818 0.1039 1819 0.1039 1820 0.1039 1821 0.8098 1822 0.8099 1823 0.8099 1824 0.8099 1825 0.81 1826 0.8099 1827 0.8099 1828 0.8098 1829 0.8099 1830 0.81 1831 0.81 1832 0.8099 1833 0.8099 1834 0.8099 1835 0.8099 1836 0.8099 1837 0.81 1838 0.8099 1839 0.8098 1840 0.8101 1841 0.8098 1842 0.8099 1843 0.81 1844 0.8099 1845 0.8098 1846 0.8099 1847 0.8099 1848 0.81 1849 0.81 1850 0.8098 1851 0.8099 1852 0.8099 1853 0.8101 1854 0.8098 1855 0.81 1856 0.8099 1857 0.8098 1858 0.81 1859 0.8098 1860 0.81 1861 0.81 1862 0.8099 1863 0.8099 1864 0.8099 1865 0.8099 1866 0.8099 1867 0.81 1868 0.8099 1869 0.81 1870 0.8099 1871 2.622 1872 2.622 1873 2.622 1874 2.622 1875 2.622 1876 2.622 1877 2.622 1878 2.622 1879 2.622 1880 2.622 1881 2.622 1882 2.622 1883 2.622 1884 2.622 1885 2.622 1886 2.622 1887 2.622 1888 2.622 1889 2.622 1890 2.622 1891 1.568 1892 1.568 1893 1.568 1894 1.568 1895 1.568 1896 1.568 1897 1.568 1898 1.568 1899 1.568 1900 1.568 1901 2.495 1902 2.495 1903 2.495 1904 2.495 1905 2.495 1906 2.495 1907 2.495 1908 2.495 1909 2.495 1910 2.495 1911 0.8844 1912 0.8845 1913 0.8845 1914 0.5292 1915 0.5292 1916 0.5292 1917 0.5291 1918 0.5292 1919 0.5291 1920 0.5292 1921 1.879 1922 2.369 1923 4.634 1924 6.6 1925 4.346 1926 6.4 1927 -2.16 1928 8.211 1929 4.716 1930 -2.497 1931 -3.53 1932 -9.761 1933 2.593 1934 3.204 1935 -1.999 1936 12.42 1937 1.152 1938 7.458 1939 4.999 1940 -0.00354 1941 -0.00356 1942 -0.00346 1943 -0.00352 1944 -0.00356 1945 -0.0035 1946 -0.00351 1947 -0.00349 1948 18.75 1949 9.347 1950 -6.773 1951 5.684 1952 -6.762 1953 15.56 1954 5.672 1955 6.028 1956 -2.43 1957 16.21 1958 3.689 1959 11.8 1960 6.068 1961 4.47 1962 2.11 1963 10.85 1964 10.07 1965 3.022 1966 5.619 1967 1.969 1968 2.36 1969 11.55 1970 5.244 1971 11.93 1972 3.827 1973 3.834 1974 13.45 1975 0.5538 1976 3.686 1977 7.966 1978 6.191 1979 7.34 1980 5.239 1981 1.812 1982 0.4231 1983 0.4823 1984 2.219 1985 0.7231 1986 4.29 1987 -0.7143 1988 -0.8714 1989 -0.754 1990 -6.865 1991 0.3114 1992 -6.561 1993 -7.477 1994 -1.751 1995 -1.117 1996 1.174 1997 1.435 1998 3.371 1999 4.346 2000 4.563 2001 -4.519 2002 0.889 2003 2.855 2004 4.146 2005 4.192 2006 5.078 2007 6.143 2008 5.059 2009 -0.9138 2010 2.856 2011 2.799 2012 -0.4662 2013 2.996