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 0.871
1822 0.8708
1823 0.8709
1824 0.871
1825 0.8708
1826 0.8709
1827 0.871
1828 0.8708
1829 0.8709
1830 0.8707
1831 0.8711
1832 0.8709
1833 0.8707
1834 0.8711
1835 0.8709
1836 0.871
1837 0.8707
1838 0.8711
1839 0.8709
1840 0.871
1841 0.8707
1842 0.8711
1843 0.8709
1844 0.8709
1845 0.871
1846 0.8707
1847 0.8711
1848 0.8709
1849 0.8709
1850 0.871
1851 0.8707
1852 0.871
1853 0.8708
1854 0.8711
1855 0.8709
1856 0.8709
1857 0.8709
1858 0.871
1859 0.871
1860 0.8707
1861 0.871
1862 0.871
1863 0.8708
1864 0.8711
1865 0.8708
1866 0.8708
1867 0.8711
1868 0.8708
1869 0.8711
1870 0.8708
1871 1.029
1872 1.029
1873 1.029
1874 1.029
1875 1.029
1876 1.029
1877 1.029
1878 1.029
1879 1.029
1880 1.029
1881 1.029
1882 1.029
1883 1.029
1884 1.029
1885 1.029
1886 1.029
1887 1.029
1888 1.029
1889 1.029
1890 1.029
1891 1.029
1892 1.029
1893 1.029
1894 1.029
1895 1.029
1896 1.029
1897 1.029
1898 1.029
1899 1.029
1900 1.029
1901 1.029
1902 1.029
1903 1.029
1904 1.029
1905 1.029
1906 1.029
1907 1.029
1908 1.029
1909 1.029
1910 1.029
1911 1.029
1912 1.029
1913 1.029
1914 0.3457
1915 0.3459
1916 0.3456
1917 0.3457
1918 0.3457
1919 0.3459
1920 0.3456
1921 0.3458
1922 0.3457
1923 0.3459
1924 0.3456
1925 0.3458
1926 0.3457
1927 0.3456
1928 0.3458
1929 0.3458
1930 0.3457
1931 0.3456
1932 0.3458
1933 0.3458
1934 0.3457
1935 0.3456
1936 0.3458
1937 0.3458
1938 0.3457
1939 0.3456
1940 0.3458
1941 0.3458
1942 0.3457
1943 0.3456
1944 0.3458
1945 0.3457
1946 0.3457
1947 0.3456
1948 0.3458
1949 0.3457
1950 0.3457
1951 5.916
1952 6.154
1953 6.305
1954 6.233
1955 6.268
1956 6.42
1957 6.237
1958 6.495
1959 6.213
1960 6.188
1961 1.082
1962 20.24
1963 4.29
1964 0.03996
1965 0.5113
1966 5.297
1967 66.6
1968 82.13
1969 26.15
1970 3.836
1971 1.355
1972 9.912
1973 -13.23
1974 12.87
1975 26.41
1976 13.42
1977 0.7908
1978 -1.609
1979 4.726
1980 6.539
1981 17.52
1982 12.22
1983 17.56
1984 17.61
1985 14.8
1986 2.708
1987 8.299
1988 3.096
1989 4.372
1990 0.4185
1991 6.269
1992 8.947
1993 6.302
1994 3.609
1995 3.561
1996 0.5803
1997 2.924
1998 -0.9473
1999 -3.745
2000 2.13
2001 4.547
2002 0.176
2003 0.01529
2004 3.761
2005 4.534
2006 6.067
2007 7.489
2008 14.04
2009 2.619
2010 23.99
2011 -10.05
2012 3.833
2013 3.693