Year Total
1801 0.0006
1802 0.0006
1803 0.0006
1804 0.0006
1805 0.0006
1806 0.0006
1807 0.0006
1808 0.0006
1809 0.0006
1810 0.0006
1811 0.0006
1812 0.0006
1813 0.0006
1814 0.0006
1815 0.0006
1816 0.0006
1817 0.0006
1818 0.0006
1819 0.0006
1820 0.0006
1821 1.453
1822 1.453
1823 1.453
1824 1.453
1825 1.453
1826 1.453
1827 1.453
1828 1.453
1829 1.453
1830 1.453
1831 1.453
1832 1.453
1833 1.453
1834 1.453
1835 1.453
1836 1.453
1837 1.453
1838 1.453
1839 1.453
1840 1.453
1841 1.453
1842 1.453
1843 1.453
1844 1.453
1845 1.453
1846 1.453
1847 1.453
1848 1.453
1849 1.453
1850 1.453
1851 1.453
1852 1.453
1853 1.453
1854 1.453
1855 1.453
1856 1.453
1857 1.453
1858 1.453
1859 1.453
1860 1.453
1861 1.453
1862 1.453
1863 1.453
1864 1.453
1865 1.453
1866 1.453
1867 1.453
1868 1.453
1869 1.453
1870 1.453
1871 1.453
1872 1.453
1873 1.453
1874 1.453
1875 1.453
1876 1.453
1877 1.453
1878 1.453
1879 1.453
1880 1.453
1881 1.453
1882 1.453
1883 1.453
1884 1.453
1885 1.453
1886 -3.079
1887 17.88
1888 -3.02
1889 -6.258
1890 0.3998
1891 -7.656
1892 10.37
1893 14.25
1894 14.62
1895 -6.709
1896 11.04
1897 -0.8726
1898 3.496
1899 6.978
1900 -1.351
1901 3.33
1902 9.551
1903 -6.141
1904 11.49
1905 -10.77
1906 -3.646
1907 -3.127
1908 10.1
1909 4.669
1910 7.574
1911 -6.858
1912 8.926
1913 5.909
1914 -3.73
1915 3.757
1916 -10.37
1917 -11.48
1918 -38.28
1919 -13.08
1920 1.223
1921 -7.722
1922 17.02
1923 16.12
1924 27.72
1925 25.99
1926 13.19
1927 5.019
1928 6.017
1929 1.987
1930 5.366
1931 1.728
1932 -0.7409
1933 4.606
1934 10.07
1935 15.27
1936 7.672
1937 9.179
1938 0.5308
1939 4.898
1940 -3.384
1941 -1.077
1942 -1.077
1943 -1.077
1944 -1.077
1945 -1.077
1946 -1.077
1947 12.01
1948 13.9
1949 10.11
1950 9.2
1951 0.3492
1952 6.777
1953 4.965
1954 5.707
1955 9.477
1956 10.56
1957 2.971
1958 8.425
1959 -0.3757
1960 10.15
1961 6.367
1962 3.32
1963 -1.708
1964 13.58
1965 6.305
1966 5.425
1967 4.923
1968 6.345
1969 1.873
1970 8.195
1971 3.097
1972 0.9813
1973 8.854
1974 3.282
1975 0.5258
1976 4.813
1977 2.376
1978 2.491
1979 -0.4456
1980 0.2446
1981 1.111
1982 2.701
1983 3.439
1984 1.408
1985 1.015
1986 4.181
1987 1.319
1988 2.102
1989 1.641
1990 -2.587
1991 -17.84
1992 -29.27
1993 -1.56
1994 -31.16
1995 -1.825
1996 -6.384
1997 0.8713
1998 -7.407
1999 -4.559
2000 0.6525
2001 4.36
2002 5.824
2003 4.244
2004 5.346
2005 5.573
2006 3.643
2007 2.045
2008 6.98
2009 -6.697
2010 6.317
2011 6.06
2012 -1.426
2013 8.123