Year Total 1801 0.6378 1802 0.6378 1803 0.6378 1804 0.6378 1805 0.6378 1806 0.6378 1807 0.6378 1808 0.6379 1809 0.6378 1810 0.6379 1811 0.6378 1812 0.6378 1813 0.6379 1814 0.6378 1815 0.6379 1816 0.6378 1817 0.6378 1818 0.6379 1819 0.6378 1820 0.6378 1821 2.123 1822 2.091 1823 2.118 1824 2.116 1825 2.084 1826 2.111 1827 2.109 1828 2.135 1829 2.104 1830 2.101 1831 1.504 1832 1.531 1833 1.5 1834 1.526 1835 1.523 1836 0.6848 1837 2.361 1838 1.516 1839 1.513 1840 1.511 1841 1.708 1842 1.704 1843 1.7 1844 1.696 1845 1.692 1846 1.715 1847 1.685 1848 1.707 1849 1.704 1850 1.7 1851 1.68 1852 1.675 1853 1.695 1854 1.665 1855 1.685 1856 1.655 1857 1.699 1858 1.645 1859 1.641 1860 1.66 1861 1.352 1862 1.372 1863 1.367 1864 1.362 1865 1.381 1866 1.353 1867 1.372 1868 1.367 1869 1.363 1870 1.157 1871 7.475 1872 0.9982 1873 -2.107 1874 4.713 1875 0.7235 1876 2.484 1877 3.665 1878 3.55 1879 -0.4738 1880 1.609 1881 4.336 1882 0.8766 1883 4.366 1884 2.943 1885 -0.395 1886 3.503 1887 7.177 1888 0.03138 1889 -0.7141 1890 5.67 1891 3.784 1892 2.456 1893 0.891 1894 6.073 1895 2.905 1896 1.757 1897 2.34 1898 5.859 1899 2.326 1900 1.043 1901 0.6269 1902 4.161 1903 1.133 1904 1.773 1905 5.835 1906 4.086 1907 6.386 1908 0.6559 1909 -0.1102 1910 1.641 1911 3.125 1912 5.016 1913 -0.4975 1914 -16.54 1915 -7.241 1916 -1.218 1917 -2.148 1918 -2.062 1919 -15.61 1920 7.369 1921 10.69 1922 8.98 1923 -0.9988 1924 11.6 1925 6.78 1926 1.693 1927 3.018 1928 4.646 1929 1.448 1930 -2.759 1931 -8.023 1932 -10.32 1933 -3.321 1934 0.8589 1935 1.946 1936 2.983 1937 5.33 1938 12.76 1939 13.37 1940 -2.582 1941 7.155 1942 -5.029 1943 2.431 1944 -5.997 1945 -54.92 1946 16.8 1947 10.27 1948 27.33 1949 18.9 1950 12.43 1951 6.747 1952 0.18 1953 4.313 1954 10.18 1955 11.07 1956 6.956 1957 6.133 1958 3.608 1959 2.803 1960 8.2 1961 5.295 1962 2.428 1963 4.097 1964 6.012 1965 2.878 1966 5.536 1967 2.864 1968 4.462 1969 6.452 1970 7.243 1971 5.09 1972 5.998 1973 4.642 1974 4.01 1975 0.03635 1976 4.791 1977 4.569 1978 -0.4039 1979 5.497 1980 2.209 1981 -0.3585 1982 1.757 1983 3.131 1984 0.3886 1985 2.285 1986 2.378 1987 1.731 1988 3.153 1989 4.224 1990 3.776 1991 2.986 1992 1.881 1993 0.1927 1994 2.874 1995 2.191 1996 2.769 1997 1.867 1998 3.538 1999 3.205 2000 3.38 2001 1.011 2002 1.245 2003 1.638 2004 2.827 2005 2.531 2006 3.649 2007 3.75 2008 1.392 2009 -3.767 2010 2.042 2011 2.533 2012 0.5206 2013 0.2774