Year Total
1801 0.0236
1802 0.0236
1803 0.0236
1804 0.0236
1805 0.0236
1806 0.0236
1807 0.0236
1808 0.0236
1809 0.0236
1810 0.0236
1811 0.0236
1812 0.0236
1813 0.0236
1814 0.0236
1815 0.0236
1816 0.0236
1817 0.0236
1818 0.0236
1819 0.0236
1820 0.0236
1821 0.8071
1822 0.8071
1823 0.807
1824 0.8071
1825 0.8071
1826 0.8071
1827 0.807
1828 0.8071
1829 0.8071
1830 0.8071
1831 0.8071
1832 0.8071
1833 0.807
1834 0.8071
1835 0.8071
1836 0.8071
1837 0.8071
1838 0.8071
1839 0.8071
1840 0.8071
1841 0.8071
1842 0.8071
1843 0.8071
1844 0.8071
1845 0.8071
1846 0.8071
1847 0.8071
1848 0.8071
1849 0.8071
1850 0.8071
1851 0.8071
1852 0.807
1853 0.8071
1854 0.8071
1855 0.8071
1856 0.8071
1857 0.8071
1858 0.8071
1859 0.8071
1860 0.807
1861 0.8071
1862 0.8071
1863 0.8071
1864 0.807
1865 0.8071
1866 0.807
1867 0.8071
1868 0.807
1869 0.8071
1870 0.8071
1871 0.8985
1872 0.8986
1873 0.8985
1874 0.8986
1875 0.8985
1876 0.8986
1877 0.8986
1878 0.8986
1879 0.8985
1880 0.8986
1881 0.8986
1882 0.8986
1883 0.8985
1884 0.8986
1885 0.8986
1886 0.8985
1887 0.8986
1888 0.8985
1889 0.8986
1890 0.8985
1891 0.8986
1892 0.8986
1893 0.8985
1894 0.8986
1895 0.8986
1896 0.8985
1897 0.8986
1898 0.8986
1899 0.8986
1900 0.8985
1901 0.8986
1902 0.8986
1903 0.8986
1904 0.8986
1905 0.8986
1906 0.8985
1907 0.8985
1908 0.8986
1909 0.8985
1910 0.8985
1911 0.8985
1912 0.8986
1913 0.8986
1914 6.101
1915 6.101
1916 6.101
1917 6.101
1918 6.101
1919 6.101
1920 6.101
1921 6.101
1922 6.101
1923 6.101
1924 6.101
1925 6.101
1926 6.101
1927 6.101
1928 6.101
1929 6.101
1930 6.101
1931 6.101
1932 6.101
1933 6.101
1934 6.101
1935 6.101
1936 6.101
1937 6.101
1938 6.101
1939 6.101
1940 6.101
1941 6.101
1942 6.101
1943 6.101
1944 6.101
1945 6.101
1946 6.101
1947 6.101
1948 6.101
1949 6.101
1950 6.101
1951 8.914
1952 6.656
1953 10.66
1954 12.12
1955 2.928
1956 7.927
1957 4.05
1958 5.462
1959 10.93
1960 10.76
1961 12.83
1962 13.02
1963 9.806
1964 9.909
1965 13.18
1966 15.54
1967 9.748
1968 9.924
1969 8.826
1970 10.79
1971 16.12
1972 17.3
1973 21.98
1974 17.51
1975 0.7701
1976 8.457
1977 14.1
1978 4.73
1979 5.501
1980 9.441
1981 8.166
1982 2.293
1983 -10.29
1984 0.00505
1985 -6.983
1986 -6.232
1987 4.562
1988 2.987
1989 3.385
1990 16.24
1991 10.28
1992 1.999
1993 -4.052
1994 -2.664
1995 -1.868
1996 -0.2807
1997 0.3415
1998 0.09501
1999 -1.915
2000 4.293
2001 0.7325
2002 1.047
2003 9.154
2004 6.733
2005 7.296
2006 5.331
2007 5.425
2008 7.594
2009 0.913
2010 6.391
2011 7.829
2012 5.123
2013 3.197