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 0.9421 1822 0.9421 1823 0.9421 1824 0.9421 1825 0.9421 1826 0.942 1827 0.9421 1828 0.9421 1829 0.9421 1830 0.9421 1831 0.942 1832 0.9421 1833 0.9421 1834 0.9421 1835 0.9421 1836 0.942 1837 0.9421 1838 0.9421 1839 0.9421 1840 0.9421 1841 0.9421 1842 0.942 1843 0.9421 1844 0.9421 1845 0.9421 1846 0.9421 1847 0.942 1848 0.9421 1849 0.9421 1850 0.9421 1851 0.9421 1852 0.9421 1853 0.942 1854 0.9421 1855 0.9421 1856 0.9421 1857 0.9421 1858 0.9421 1859 0.9421 1860 0.9421 1861 0.9421 1862 0.9421 1863 0.9421 1864 0.9421 1865 0.9421 1866 0.942 1867 0.9421 1868 0.9421 1869 0.9421 1870 0.9421 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 1.567 1892 1.567 1893 1.567 1894 1.567 1895 1.567 1896 1.567 1897 1.567 1898 1.567 1899 1.567 1900 1.567 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 0.8839 1912 0.8839 1913 0.8838 1914 0.5286 1915 0.5286 1916 0.5286 1917 0.5286 1918 0.5286 1919 0.5286 1920 0.5286 1921 1.878 1922 2.368 1923 4.633 1924 6.599 1925 4.345 1926 6.4 1927 -2.16 1928 8.21 1929 4.715 1930 -2.497 1931 -3.531 1932 -9.762 1933 2.593 1934 3.204 1935 -1.999 1936 12.42 1937 1.151 1938 7.457 1939 4.998 1940 -0.00411 1941 -0.00409 1942 -0.00412 1943 -0.0041 1944 -0.00409 1945 -0.0041 1946 -0.0041 1947 -0.0041 1948 18.75 1949 9.346 1950 -6.774 1951 3.266 1952 -8.384 1953 14.11 1954 4.798 1955 5.517 1956 -2.653 1957 16.12 1958 3.64 1959 11.65 1960 5.723 1961 3.873 1962 1.284 1963 9.78 1964 8.951 1965 2.018 1966 4.641 1967 1.045 1968 1.446 1969 10.55 1970 4.303 1971 10.95 1972 2.94 1973 2.95 1974 12.45 1975 -0.3737 1976 2.657 1977 6.849 1978 5.164 1979 6.521 1980 4.74 1981 1.678 1982 0.5757 1983 0.7506 1984 2.37 1985 0.5916 1986 3.778 1987 -1.489 1988 -1.751 1989 -1.486 1990 -7.254 1991 -21.09 1992 -11.72 1993 -8.047 1994 5.881 1995 6.861 1996 5.971 1997 6.891 1998 2.592 1999 -0.892 2000 2.662 2001 4.053 2002 4.675 2003 3.669 2004 3.233 2005 5.753 2006 4.788 2007 4.97 2008 1.954 2009 -7.001 2010 -2.196 2011 0.1394 2012 -2.053 2013 -1.197