Year Total
1801 0.046
1802 0.046
1803 0.046
1804 0.046
1805 0.046
1806 0.046
1807 0.046
1808 0.046
1809 0.046
1810 0.046
1811 0.046
1812 0.046
1813 0.046
1814 0.046
1815 0.046
1816 0.046
1817 0.046
1818 0.046
1819 0.046
1820 0.046
1821 0.7919
1822 0.7922
1823 0.7924
1824 0.7925
1825 0.7926
1826 0.7918
1827 0.7928
1828 0.7918
1829 0.7927
1830 0.7917
1831 0.7925
1832 0.7923
1833 0.7921
1834 0.7927
1835 0.7924
1836 0.7921
1837 0.7917
1838 0.7922
1839 0.7926
1840 0.7921
1841 0.7924
1842 0.7919
1843 0.7929
1844 0.7923
1845 0.7916
1846 0.7926
1847 0.7918
1848 0.7926
1849 0.7926
1850 0.7918
1851 0.7925
1852 0.7923
1853 0.7921
1854 0.7919
1855 0.7924
1856 0.7921
1857 0.7925
1858 0.7922
1859 0.7925
1860 0.792
1861 0.7923
1862 0.7924
1863 0.7926
1864 0.792
1865 0.792
1866 0.7928
1867 0.7921
1868 0.792
1869 0.7926
1870 0.7924
1871 0.7922
1872 0.792
1873 0.7924
1874 0.7921
1875 0.7924
1876 0.7921
1877 0.7923
1878 0.7925
1879 0.792
1880 0.7921
1881 0.7921
1882 0.7928
1883 0.7921
1884 0.7921
1885 0.7926
1886 0.7918
1887 0.7928
1888 0.792
1889 0.7923
1890 0.792
1891 0.7923
1892 0.7924
1893 0.792
1894 0.7927
1895 0.7922
1896 0.7922
1897 0.7922
1898 0.7921
1899 0.7926
1900 0.7919
1901 0.9164
1902 0.9167
1903 0.9164
1904 0.9161
1905 0.9163
1906 0.9164
1907 0.9165
1908 0.9161
1909 0.9166
1910 0.9161
1911 0.9165
1912 0.9164
1913 0.9162
1914 0.9165
1915 0.9163
1916 0.9161
1917 0.9167
1918 0.9164
1919 0.9164
1920 0.916
1921 0.9165
1922 0.9164
1923 0.9164
1924 0.9163
1925 0.9161
1926 0.9163
1927 0.9165
1928 0.9163
1929 0.9164
1930 0.9165
1931 0.9165
1932 0.9161
1933 0.9164
1934 0.9164
1935 0.9162
1936 0.9165
1937 0.9163
1938 0.9164
1939 0.9165
1940 0.9162
1941 0.9162
1942 0.9162
1943 0.9166
1944 0.9161
1945 0.9164
1946 0.9166
1947 0.9164
1948 0.9161
1949 0.9166
1950 0.9163
1951 3.904
1952 2.354
1953 3.994
1954 6.567
1955 4.606
1956 5.526
1957 5.543
1958 4.213
1959 6.727
1960 6.825
1961 15.87
1962 -2.317
1963 -0.8584
1964 5.008
1965 9.297
1966 15.1
1967 2.258
1968 0.3918
1969 9.909
1970 -10.37
1971 11.17
1972 7.167
1973 4.675
1974 19.9
1975 -6.299
1976 11.4
1977 4.717
1978 -5.343
1979 16.2
1980 -9.729
1981 -0.4866
1982 13.3
1983 -11.48
1984 -1.937
1985 -7.537
1986 6.579
1987 6.747
1988 11.81
1989 7.789
1990 4.441
1991 1.913
1992 3.702
1993 5.105
1994 2.754
1995 -4.351
1996 5.251
1997 4.087
1998 2.831
1999 5.845
2000 5.163
2001 5.495
2002 -3.326
2003 6.617
2004 7.138
2005 5.139
2006 1.124
2007 3.631
2008 5.735
2009 6.45
2010 6.526
2011 -4.295
2012 5.253
2013 6.303