Year Total 1801 0.1659 1802 0.1659 1803 0.1659 1804 0.1659 1805 0.1659 1806 0.1659 1807 0.1659 1808 0.1659 1809 0.1659 1810 0.1659 1811 0.1659 1812 0.1659 1813 0.1659 1814 0.1659 1815 0.1659 1816 0.1659 1817 0.1659 1818 0.1659 1819 0.1659 1820 0.1659 1821 1.563 1822 1.563 1823 1.563 1824 1.563 1825 1.563 1826 1.563 1827 1.563 1828 1.563 1829 1.563 1830 1.564 1831 1.563 1832 1.563 1833 1.563 1834 1.563 1835 1.563 1836 1.563 1837 1.563 1838 1.563 1839 1.563 1840 1.563 1841 1.563 1842 1.563 1843 1.563 1844 1.563 1845 1.563 1846 1.563 1847 1.563 1848 1.563 1849 1.564 1850 1.563 1851 1.563 1852 1.563 1853 1.563 1854 1.563 1855 1.563 1856 1.563 1857 1.564 1858 1.563 1859 1.563 1860 1.563 1861 1.564 1862 1.563 1863 1.564 1864 1.563 1865 1.563 1866 1.563 1867 1.563 1868 1.563 1869 1.563 1870 1.563 1871 1.564 1872 1.563 1873 1.563 1874 1.563 1875 1.563 1876 1.564 1877 1.563 1878 1.563 1879 1.563 1880 1.563 1881 1.563 1882 1.563 1883 1.563 1884 1.563 1885 1.563 1886 1.563 1887 1.563 1888 1.563 1889 1.563 1890 1.563 1891 1.563 1892 1.563 1893 1.564 1894 1.563 1895 1.563 1896 1.563 1897 1.563 1898 1.563 1899 1.563 1900 1.563 1901 1.563 1902 1.563 1903 1.563 1904 1.563 1905 1.563 1906 1.563 1907 1.563 1908 1.563 1909 1.563 1910 1.563 1911 1.563 1912 1.563 1913 1.563 1914 1.563 1915 1.563 1916 1.563 1917 1.563 1918 1.563 1919 1.563 1920 1.563 1921 1.563 1922 1.563 1923 1.563 1924 1.563 1925 1.563 1926 1.563 1927 1.563 1928 1.563 1929 1.563 1930 1.563 1931 1.563 1932 1.563 1933 1.563 1934 1.563 1935 1.563 1936 1.563 1937 1.563 1938 1.563 1939 1.563 1940 1.563 1941 1.563 1942 1.563 1943 1.563 1944 1.563 1945 1.563 1946 1.563 1947 1.563 1948 1.563 1949 1.563 1950 1.563 1951 1.203 1952 1.098 1953 1.031 1954 0.9894 1955 0.9623 1956 0.936 1957 0.8978 1958 0.8387 1959 0.7516 1960 0.6417 1961 0.7427 1962 -3.706 1963 -0.3219 1964 1.549 1965 6.095 1966 9.95 1967 6.267 1968 9.601 1969 5.985 1970 12.31 1971 3.116 1972 6.194 1973 9.774 1974 9.599 1975 18.9 1976 16 1977 10.61 1978 9.6 1979 9.782 1980 7.603 1981 4.752 1982 4.437 1983 2.063 1984 4.053 1985 5.849 1986 3.998 1987 4.143 1988 8.556 1989 8.329 1990 6.453 1991 6.476 1992 4.861 1993 4.58 1994 5.741 1995 5.931 1996 4.165 1997 4.573 1998 3.46 1999 3.686 2000 6.312 2001 -1.79 2002 2.482 2003 -0.3467 2004 0.1249 2005 3.23 2006 2.434 2007 3.74 2008 3.588 2009 -3.112 2010 3.01 2011 1.58 2012 1.047 2013 2.582