Year Total
1801 0.0741
1802 0.07414
1803 0.07418
1804 0.07412
1805 0.07416
1806 0.0741
1807 0.07414
1808 0.07409
1809 0.07422
1810 0.07407
1811 0.0742
1812 0.07405
1813 0.07418
1814 0.07413
1815 0.07416
1816 0.07411
1817 0.07414
1818 0.07409
1819 0.07413
1820 0.07416
1821 1.137
1822 1.137
1823 1.137
1824 1.137
1825 1.137
1826 1.137
1827 1.137
1828 1.137
1829 1.137
1830 1.137
1831 1.137
1832 1.137
1833 1.137
1834 1.137
1835 1.137
1836 1.137
1837 1.137
1838 1.137
1839 1.137
1840 1.137
1841 1.137
1842 1.137
1843 1.137
1844 1.137
1845 1.137
1846 1.137
1847 1.137
1848 1.137
1849 1.137
1850 1.137
1851 1.137
1852 1.137
1853 1.137
1854 1.137
1855 1.137
1856 1.137
1857 1.137
1858 1.137
1859 1.137
1860 1.137
1861 1.137
1862 1.137
1863 1.137
1864 1.137
1865 1.137
1866 1.137
1867 1.137
1868 1.137
1869 1.137
1870 1.137
1871 1.959
1872 1.959
1873 1.959
1874 1.959
1875 1.959
1876 1.959
1877 1.959
1878 1.959
1879 1.959
1880 1.959
1881 1.959
1882 1.959
1883 1.959
1884 1.959
1885 1.959
1886 1.959
1887 1.959
1888 1.959
1889 1.959
1890 1.959
1891 1.959
1892 1.959
1893 1.959
1894 1.959
1895 1.959
1896 1.959
1897 1.959
1898 1.959
1899 1.959
1900 1.959
1901 1.959
1902 1.959
1903 1.959
1904 1.959
1905 1.959
1906 1.959
1907 1.959
1908 1.959
1909 1.959
1910 1.959
1911 1.959
1912 1.959
1913 1.959
1914 3.751
1915 3.751
1916 3.751
1917 3.751
1918 3.751
1919 3.751
1920 3.751
1921 3.751
1922 3.751
1923 3.751
1924 3.751
1925 3.751
1926 3.751
1927 3.751
1928 3.751
1929 3.751
1930 3.751
1931 3.751
1932 3.751
1933 3.751
1934 3.751
1935 3.751
1936 3.751
1937 3.751
1938 3.751
1939 3.751
1940 3.751
1941 3.751
1942 3.751
1943 3.751
1944 3.751
1945 3.751
1946 3.751
1947 3.751
1948 3.751
1949 3.751
1950 3.751
1951 9.58
1952 10.97
1953 40.4
1954 18.55
1955 -4.494
1956 6.367
1957 -1.495
1958 10.94
1959 3.644
1960 11.1
1961 11.05
1962 4.625
1963 -2.131
1964 11.67
1965 8.83
1966 5.169
1967 -2.333
1968 17.83
1969 3.454
1970 -0.3416
1971 6.61
1972 -2.327
1973 21.56
1974 13.64
1975 14.39
1976 17.12
1977 0.3819
1978 17.88
1979 30.53
1980 2.299
1981 -16.65
1982 -3.477
1983 -12.9
1984 1.312
1985 2.787
1986 5.613
1987 20.36
1988 3.48
1989 -10.21
1990 0.00287
1991 -66.52
1992 24.19
1993 49.61
1994 -7.883
1995 -19.15
1996 48.71
1997 23.29
1998 34.95
1999 21.79
2000 1.799
2001 2.52
2002 -8.761
2003 -35.1
2004 58.48
2005 3.318
2006 9.266
2007 1.818
2008 6.804
2009 5.261
2010 6.336
2011 7.618
2012 10.29
2013 4.212