Year Total 1801 0.3287 1802 0.3287 1803 0.3287 1804 0.3287 1805 0.3287 1806 0.3287 1807 0.3287 1808 0.3287 1809 0.3287 1810 0.3287 1811 0.3287 1812 0.3287 1813 0.3287 1814 0.3287 1815 0.3287 1816 0.3287 1817 0.3287 1818 0.3287 1819 0.3287 1820 0.3287 1821 0.8167 1822 0.8167 1823 0.8167 1824 0.8167 1825 0.8167 1826 0.8167 1827 0.8167 1828 0.8167 1829 0.8167 1830 0.8167 1831 0.8167 1832 0.8167 1833 0.8167 1834 0.8167 1835 0.8167 1836 0.8167 1837 0.8167 1838 0.8167 1839 0.8167 1840 0.8167 1841 0.8167 1842 0.8167 1843 0.8167 1844 0.8167 1845 0.8167 1846 0.8167 1847 0.8167 1848 0.8167 1849 0.8167 1850 0.8167 1851 0.8167 1852 0.8167 1853 0.8167 1854 0.8167 1855 0.8167 1856 0.8167 1857 0.8167 1858 0.8167 1859 0.8167 1860 0.8167 1861 0.8167 1862 0.8167 1863 0.8167 1864 0.8167 1865 0.8167 1866 0.8167 1867 0.8167 1868 0.8167 1869 0.8167 1870 0.8167 1871 1.467 1872 1.467 1873 -0.4071 1874 -0.4071 1875 -0.4072 1876 -0.4071 1877 -0.4071 1878 -0.4071 1879 -0.4071 1880 1.467 1881 1.869 1882 1.869 1883 1.869 1884 1.869 1885 1.868 1886 1.869 1887 1.869 1888 1.869 1889 1.869 1890 1.869 1891 1.869 1892 1.869 1893 1.869 1894 1.869 1895 1.869 1896 1.869 1897 1.869 1898 1.869 1899 1.869 1900 1.869 1901 1.869 1902 1.869 1903 1.869 1904 1.869 1905 1.869 1906 1.869 1907 1.869 1908 1.869 1909 1.869 1910 1.869 1911 1.869 1912 1.869 1913 1.869 1914 -6.255 1915 -6.255 1916 -6.255 1917 -6.255 1918 -6.255 1919 -6.255 1920 -6.255 1921 -6.255 1922 -6.255 1923 -6.255 1924 19.18 1925 10.94 1926 15.67 1927 -9.415 1928 10.42 1929 15.54 1930 4.153 1931 5.598 1932 -6.379 1933 12.73 1934 1.942 1935 1.668 1936 18.58 1937 2.976 1938 8.415 1939 7.927 1940 -6.378 1941 -9.356 1942 3.972 1943 -9.553 1944 -4.608 1945 -13.81 1946 28.73 1947 5.26 1948 13.15 1949 -5.375 1950 9.594 1951 12.79 1952 11.99 1953 11.12 1954 -3.001 1955 7.711 1956 2.724 1957 7.168 1958 3.685 1959 3.709 1960 2.088 1961 1.045 1962 5.681 1963 9.115 1964 3.822 1965 2.3 1966 11.28 1967 4.059 1968 6.227 1969 4.761 1970 4.389 1971 8.577 1972 5.916 1973 3.802 1974 7.403 1975 8.222 1976 8.13 1977 3.879 1978 2.491 1979 -1.107 1980 -0.8856 1981 3.844 1982 4.616 1983 3.325 1984 5.344 1985 4.628 1986 6.43 1987 8.096 1988 3.277 1989 0.5763 1990 8.655 1991 0.4313 1992 5.491 1993 7.571 1994 -5.821 1995 6.852 1996 6.723 1997 7.282 1998 2.859 1999 -4.877 2000 7.175 2001 -7.662 2002 7.699 2003 5.656 2004 8.757 2005 7.258 2006 7.043 2007 4.838 2008 0.7352 2009 -4.866 2010 9.091 2011 8.42 2012 2.086 2013 3.275