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 0.2965
1822 0.2965
1823 0.2964
1824 0.2965
1825 0.2964
1826 0.2964
1827 0.2965
1828 0.2964
1829 0.2965
1830 0.2965
1831 0.2964
1832 0.2965
1833 0.2964
1834 0.2965
1835 0.2965
1836 0.2965
1837 0.2964
1838 0.2964
1839 0.2965
1840 0.2964
1841 0.2965
1842 0.2965
1843 0.2965
1844 0.2964
1845 0.2965
1846 0.2965
1847 0.2965
1848 0.2965
1849 0.2964
1850 0.2965
1851 0.2965
1852 0.2964
1853 0.2965
1854 0.2964
1855 0.2964
1856 0.2965
1857 0.2965
1858 0.2964
1859 0.2965
1860 0.2964
1861 0.2964
1862 0.2965
1863 0.2964
1864 0.2965
1865 0.2964
1866 0.2965
1867 0.2965
1868 0.2964
1869 0.2965
1870 0.2964
1871 0.4529
1872 0.4529
1873 0.4529
1874 0.4529
1875 0.4528
1876 0.4529
1877 0.4529
1878 0.4529
1879 0.4529
1880 0.4529
1881 0.4529
1882 0.4529
1883 0.4528
1884 0.4529
1885 0.4529
1886 0.4529
1887 0.4529
1888 0.4529
1889 0.4529
1890 0.4529
1891 0.4529
1892 0.4529
1893 0.4529
1894 0.4529
1895 0.4529
1896 0.4529
1897 0.4529
1898 0.4529
1899 0.4529
1900 0.4529
1901 0.4529
1902 0.4529
1903 0.4529
1904 0.4529
1905 0.4529
1906 0.4529
1907 0.4529
1908 0.4529
1909 0.4529
1910 0.4529
1911 0.4529
1912 0.4529
1913 0.4529
1914 0.8562
1915 0.8563
1916 0.8562
1917 0.8562
1918 0.8562
1919 0.8562
1920 0.8562
1921 0.8562
1922 0.8562
1923 0.8562
1924 0.8562
1925 0.8563
1926 0.8562
1927 0.8562
1928 0.8562
1929 0.8562
1930 0.8562
1931 0.8562
1932 0.8562
1933 0.8563
1934 0.8562
1935 0.8562
1936 0.8562
1937 0.8563
1938 0.8562
1939 0.8562
1940 0.8562
1941 0.8563
1942 0.8562
1943 0.8562
1944 0.8562
1945 0.8563
1946 0.8562
1947 0.8562
1948 0.8562
1949 0.8562
1950 0.8562
1951 2.25
1952 2.296
1953 2.405
1954 2.317
1955 2.365
1956 2.205
1957 2.226
1958 2.214
1959 2.26
1960 2.356
1961 2.497
1962 2.596
1963 2.876
1964 2.451
1965 2.658
1966 2.992
1967 3.009
1968 2.716
1969 2.914
1970 20.1
1971 16.64
1972 7.197
1973 11.41
1974 5.33
1975 7.612
1976 15.46
1977 11.46
1978 9.324
1979 6.601
1980 1.672
1981 7.402
1982 3.04
1983 7.153
1984 5.165
1985 0.2666
1986 3.055
1987 4.749
1988 4.916
1989 4.311
1990 0.9913
1991 1.459
1992 6.329
1993 4.151
1994 3.261
1995 11.96
1996 6.464
1997 8.117
1998 4.591
1999 3.363
2000 5.781
2001 3.436
2002 3.548
2003 3.353
2004 3.632
2005 4.258
2006 3.18
2007 3.347
2008 3.657
2009 3.88
2010 7.812
2011 -10.39
2012 2.495
2013 4.482