Year Total
1801 0
1802 0
1803 0
1804 0
1805 0
1806 0
1807 0
1808 0
1809 0
1810 0
1811 0
1812 0
1813 0
1814 0
1815 0
1816 0
1817 0
1818 0
1819 0
1820 0
1821 1.497
1822 1.498
1823 1.497
1824 1.497
1825 1.498
1826 1.496
1827 1.498
1828 1.497
1829 1.497
1830 1.498
1831 1.497
1832 1.497
1833 1.498
1834 1.497
1835 1.497
1836 1.498
1837 1.497
1838 1.497
1839 1.497
1840 1.498
1841 1.497
1842 1.497
1843 1.497
1844 1.498
1845 1.498
1846 1.496
1847 1.497
1848 1.497
1849 1.498
1850 1.497
1851 2.755
1852 2.756
1853 2.756
1854 2.756
1855 2.755
1856 2.756
1857 2.755
1858 2.756
1859 2.756
1860 2.756
1861 2.756
1862 2.755
1863 2.756
1864 2.755
1865 2.756
1866 2.756
1867 2.756
1868 2.755
1869 2.755
1870 2.756
1871 3.145
1872 3.145
1873 3.145
1874 3.144
1875 3.145
1876 3.145
1877 3.145
1878 3.144
1879 3.145
1880 3.144
1881 3.145
1882 3.145
1883 3.145
1884 3.144
1885 3.144
1886 3.145
1887 3.145
1888 3.145
1889 3.145
1890 3.144
1891 3.145
1892 3.145
1893 3.144
1894 3.145
1895 3.145
1896 3.145
1897 3.145
1898 3.145
1899 3.145
1900 3.145
1901 2.779
1902 2.363
1903 2.69
1904 2.645
1905 2.947
1906 2.553
1907 2.513
1908 2.799
1909 2.748
1910 2.7
1911 2.655
1912 2.611
1913 2.568
1914 3.643
1915 3.622
1916 3.603
1917 3.862
1918 3.561
1919 3.543
1920 3.792
1921 -3.588
1922 3.305
1923 3.568
1924 3.006
1925 3
1926 2.994
1927 2.987
1928 3.245
1929 3.755
1930 3.988
1931 3.957
1932 3.431
1933 3.416
1934 3.644
1935 3.862
1936 3.836
1937 4.041
1938 4.008
1939 3.976
1940 4.384
1941 5.626
1942 5.93
1943 5.197
1944 4.332
1945 4.288
1946 4.807
1947 6.199
1948 5.171
1949 4.916
1950 5.509
1951 7.925
1952 3.306
1953 2.817
1954 1.847
1955 13.87
1956 21.31
1957 9.406
1958 8.494
1959 5.446
1960 11.49
1961 3.749
1962 3.514
1963 4.107
1964 2.188
1965 4.602
1966 4.451
1967 3.021
1968 6.74
1969 4.454
1970 5.806
1971 1.374
1972 5.148
1973 1.357
1974 5.002
1975 1.62
1976 9.158
1977 5.819
1978 11.41
1979 4.452
1980 7.985
1981 5.142
1982 -5.36
1983 -7.532
1984 6.166
1985 -4.106
1986 -3.427
1987 -4.766
1988 -3.886
1989 -0.4203
1990 2.392
1991 4.755
1992 0.4012
1993 0.3753
1994 5.776
1995 5.448
1996 5.304
1997 4.601
1998 5.919
1999 7.819
2000 5.899
2001 5.391
2002 4.36
2003 14.09
2004 7.65
2005 10.22
2006 13.34
2007 4.748
2008 3.381
2009 -4.121
2010 0.01401
2011 -2.645
2012 1.263
2013 1.443