Year Total 1801 0.06113 1802 0.06107 1803 0.06113 1804 0.06108 1805 0.06114 1806 0.0612 1807 0.06114 1808 0.06109 1809 0.06115 1810 0.06109 1811 0.06115 1812 0.06109 1813 0.06115 1814 0.0611 1815 0.06116 1816 0.0611 1817 0.06116 1818 0.0611 1819 0.06116 1820 0.06111 1821 1.374 1822 1.374 1823 1.374 1824 1.374 1825 1.374 1826 1.374 1827 1.374 1828 1.374 1829 1.374 1830 1.374 1831 1.374 1832 1.374 1833 1.374 1834 1.374 1835 1.374 1836 1.374 1837 1.374 1838 1.374 1839 1.374 1840 1.374 1841 1.374 1842 1.374 1843 1.374 1844 1.374 1845 1.374 1846 1.374 1847 1.374 1848 1.374 1849 1.374 1850 1.374 1851 1.374 1852 1.374 1853 1.374 1854 1.374 1855 1.374 1856 1.374 1857 1.374 1858 1.374 1859 1.374 1860 1.374 1861 1.374 1862 1.374 1863 1.374 1864 1.374 1865 1.374 1866 1.374 1867 1.374 1868 1.374 1869 1.374 1870 1.374 1871 1.871 1872 1.871 1873 1.871 1874 1.871 1875 1.871 1876 1.871 1877 1.871 1878 1.871 1879 1.871 1880 1.871 1881 1.871 1882 1.871 1883 1.871 1884 1.871 1885 1.871 1886 1.871 1887 1.871 1888 1.871 1889 1.871 1890 1.871 1891 1.871 1892 1.871 1893 1.871 1894 1.871 1895 1.871 1896 1.871 1897 1.871 1898 1.871 1899 1.871 1900 1.871 1901 1.871 1902 1.871 1903 1.871 1904 1.871 1905 1.871 1906 1.871 1907 1.871 1908 1.871 1909 1.871 1910 1.871 1911 1.871 1912 1.871 1913 1.871 1914 2.375 1915 2.375 1916 2.374 1917 2.375 1918 2.375 1919 2.374 1920 2.375 1921 2.375 1922 2.374 1923 2.374 1924 2.375 1925 2.374 1926 2.375 1927 2.375 1928 2.375 1929 2.375 1930 2.374 1931 2.375 1932 2.374 1933 2.375 1934 2.374 1935 2.375 1936 2.375 1937 2.374 1938 2.375 1939 2.374 1940 2.375 1941 2.375 1942 2.374 1943 2.374 1944 2.375 1945 2.375 1946 2.374 1947 2.375 1948 2.375 1949 2.375 1950 2.374 1951 1.122 1952 12.28 1953 3.767 1954 2.203 1955 -5.147 1956 6.967 1957 -3.564 1958 13.44 1959 -4.048 1960 12.33 1961 8.877 1962 -2.183 1963 14.89 1964 4.063 1965 6.057 1966 2.097 1967 -0.9426 1968 10.36 1969 3.544 1970 5.902 1971 10.62 1972 17.58 1973 -1.009 1974 7.687 1975 6.751 1976 7.615 1977 3.538 1978 6.995 1979 6.952 1980 7.531 1981 5.649 1982 0.1546 1983 5.398 1984 3.493 1985 5.647 1986 -1.559 1987 6.715 1988 0.2422 1989 3.926 1990 8.075 1991 3.935 1992 7.728 1993 2.048 1994 3.018 1995 2.245 1996 6.932 1997 5.213 1998 4.64 1999 5.967 2000 4.589 2001 4.767 2002 1.552 2003 5.457 2004 5.912 2005 3.995 2006 5.738 2007 6.432 2008 4.665 2009 3.189 2010 3.204 2011 -2.055 2012 3.677 2013 2.412