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 0.5822
1822 0.5822
1823 0.5822
1824 0.5822
1825 0.5822
1826 0.5822
1827 0.5822
1828 0.5822
1829 0.5822
1830 0.5822
1831 0.5822
1832 0.5822
1833 0.5822
1834 0.5822
1835 0.5822
1836 0.5822
1837 0.5822
1838 0.5822
1839 0.5822
1840 0.5822
1841 0.5822
1842 0.5822
1843 0.5822
1844 0.5822
1845 0.5822
1846 0.5822
1847 0.5822
1848 0.5822
1849 0.5822
1850 0.5822
1851 0.5822
1852 0.5822
1853 0.5822
1854 0.5822
1855 0.5822
1856 0.5822
1857 0.5822
1858 0.5822
1859 0.5822
1860 0.5822
1861 0.5822
1862 0.5822
1863 0.5822
1864 0.5822
1865 0.5822
1866 0.5822
1867 0.5822
1868 0.5822
1869 0.5822
1870 0.5822
1871 1.142
1872 1.144
1873 1.142
1874 1.144
1875 1.142
1876 1.144
1877 1.142
1878 1.143
1879 1.142
1880 1.143
1881 1.143
1882 1.143
1883 1.143
1884 1.144
1885 1.142
1886 1.143
1887 1.143
1888 1.143
1889 1.143
1890 1.142
1891 1.143
1892 1.143
1893 1.143
1894 1.142
1895 1.143
1896 1.143
1897 1.143
1898 1.143
1899 1.143
1900 1.143
1901 1.142
1902 1.143
1903 1.144
1904 1.142
1905 1.144
1906 1.142
1907 1.143
1908 1.144
1909 1.143
1910 1.142
1911 1.143
1912 1.142
1913 1.143
1914 1.524
1915 1.524
1916 1.525
1917 1.523
1918 1.524
1919 1.525
1920 1.524
1921 1.525
1922 1.524
1923 1.524
1924 1.524
1925 1.525
1926 1.525
1927 1.525
1928 1.523
1929 1.525
1930 1.524
1931 1.525
1932 1.524
1933 1.524
1934 1.525
1935 12.67
1936 12.67
1937 12.67
1938 12.67
1939 12.67
1940 12.67
1941 12.67
1942 12.67
1943 12.67
1944 12.67
1945 12.67
1946 12.67
1947 12.67
1948 12.67
1949 12.67
1950 12.67
1951 4.944
1952 6.176
1953 7.007
1954 7.531
1955 7.609
1956 7.546
1957 7.18
1958 6.573
1959 5.967
1960 5.3
1961 4.728
1962 4.779
1963 5.062
1964 5.328
1965 5.841
1966 5.88
1967 6.005
1968 5.975
1969 6.396
1970 7.238
1971 8.939
1972 9.594
1973 8.903
1974 9.878
1975 -9.293
1976 17.05
1977 10.09
1978 5.994
1979 1.346
1980 9.113
1981 2.164
1982 5.571
1983 5.666
1984 3.043
1985 -1.139
1986 1.968
1987 2.123
1988 3.86
1989 2.644
1990 -0.08006
1991 4.447
1992 7.591
1993 7.981
1994 -0.4563
1995 3.886
1996 4.617
1997 4.121
1998 5.832
1999 4.92
2000 5.155
2001 3.489
2002 3.345
2003 6.319
2004 7.893
2005 14.52
2006 17.06
2007 21.23
2008 18.48
2009 -13.96
2010 6.11
2011 4.994
2012 4.126
2013 4.163