Year Total 1801 0.3561 1802 0.3561 1803 0.3562 1804 0.3561 1805 0.3561 1806 0.3561 1807 0.3561 1808 0.3562 1809 0.3561 1810 0.3561 1811 0.3561 1812 0.3561 1813 0.3561 1814 0.3561 1815 0.3561 1816 0.3561 1817 0.3561 1818 0.3561 1819 0.3561 1820 0.3561 1821 1.709 1822 1.709 1823 1.709 1824 1.709 1825 1.709 1826 1.709 1827 1.709 1828 1.709 1829 1.709 1830 1.709 1831 1.709 1832 1.709 1833 1.709 1834 1.709 1835 1.709 1836 1.709 1837 1.709 1838 1.709 1839 1.709 1840 1.709 1841 1.709 1842 1.709 1843 1.709 1844 1.709 1845 1.709 1846 1.709 1847 1.709 1848 1.709 1849 1.709 1850 1.709 1851 1.709 1852 1.709 1853 1.709 1854 1.709 1855 1.709 1856 1.709 1857 1.709 1858 1.709 1859 1.709 1860 1.709 1861 1.709 1862 1.709 1863 1.709 1864 1.709 1865 1.709 1866 1.709 1867 1.709 1868 1.709 1869 1.709 1870 1.709 1871 2.026 1872 2.025 1873 2.026 1874 2.026 1875 2.025 1876 2.026 1877 2.026 1878 2.026 1879 2.026 1880 2.026 1881 2.025 1882 2.026 1883 2.026 1884 2.026 1885 2.025 1886 2.026 1887 2.026 1888 2.026 1889 2.026 1890 2.026 1891 2.026 1892 2.026 1893 2.026 1894 2.026 1895 2.025 1896 2.026 1897 2.026 1898 2.026 1899 2.025 1900 2.026 1901 2.025 1902 2.026 1903 2.026 1904 2.025 1905 2.026 1906 2.026 1907 2.025 1908 2.026 1909 2.026 1910 2.025 1911 2.026 1912 2.026 1913 2.026 1914 1.703 1915 1.703 1916 1.703 1917 1.703 1918 1.703 1919 1.703 1920 1.703 1921 1.703 1922 1.703 1923 1.703 1924 1.703 1925 1.703 1926 1.703 1927 1.703 1928 1.703 1929 1.703 1930 1.703 1931 1.703 1932 1.703 1933 1.703 1934 1.703 1935 1.703 1936 1.703 1937 1.703 1938 1.703 1939 1.703 1940 1.703 1941 1.703 1942 1.703 1943 1.703 1944 1.703 1945 1.703 1946 1.703 1947 1.703 1948 1.703 1949 1.703 1950 1.703 1951 0.9551 1952 4.288 1953 1.497 1954 7.124 1955 2.676 1956 9.777 1957 11.42 1958 3.738 1959 18.45 1960 6.867 1961 -12.18 1962 -18.89 1963 25.68 1964 4.25 1965 5.914 1966 -5.355 1967 8.703 1968 11.62 1969 9.712 1970 10.09 1971 -8.381 1972 21.12 1973 3.388 1974 6.241 1975 7.196 1976 6.747 1977 9.19 1978 12.99 1979 9.233 1980 2.021 1981 2.677 1982 6.546 1983 5.271 1984 5.572 1985 5.181 1986 -0.9318 1987 -0.5726 1988 -2.077 1989 3.424 1990 -1.449 1991 -1.085 1992 1.649 1993 -2.235 1994 -0.9989 1995 3.692 1996 3.724 1997 1.017 1998 5.025 1999 3.137 2000 2.454 2001 2.615 2002 4.073 2003 7.043 2004 5.41 2005 5.377 2006 1.721 2007 3.421 2008 2.017 2009 1.698 2010 3.568 2011 2.313 2012 2.579 2013 2.994