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 2.675
1822 2.675
1823 2.675
1824 2.676
1825 2.675
1826 2.675
1827 2.675
1828 2.675
1829 2.675
1830 2.675
1831 2.675
1832 2.675
1833 2.676
1834 2.675
1835 2.676
1836 2.675
1837 2.675
1838 2.676
1839 2.675
1840 2.675
1841 2.675
1842 2.675
1843 2.676
1844 2.675
1845 2.675
1846 2.675
1847 2.675
1848 2.675
1849 2.676
1850 2.675
1851 1.642
1852 1.642
1853 1.641
1854 1.642
1855 1.642
1856 1.641
1857 1.642
1858 1.641
1859 1.642
1860 1.642
1861 1.642
1862 1.642
1863 1.642
1864 1.641
1865 1.642
1866 1.642
1867 1.642
1868 1.642
1869 1.641
1870 1.642
1871 2.236
1872 2.237
1873 2.236
1874 2.236
1875 2.236
1876 2.237
1877 2.237
1878 2.236
1879 2.236
1880 2.236
1881 2.237
1882 2.236
1883 2.236
1884 2.236
1885 2.237
1886 2.237
1887 2.236
1888 2.237
1889 2.236
1890 2.237
1891 2.236
1892 2.237
1893 2.236
1894 2.237
1895 2.236
1896 2.236
1897 2.236
1898 2.237
1899 2.236
1900 2.236
1901 2.532
1902 2.511
1903 2.49
1904 2.672
1905 2.448
1906 2.625
1907 2.407
1908 2.58
1909 2.558
1910 2.536
1911 2.514
1912 2.673
1913 2.471
1914 1.402
1915 3.666
1916 2.581
1917 2.558
1918 2.536
1919 2.514
1920 2.494
1921 3.832
1922 -8.452
1923 7.022
1924 5.954
1925 10.44
1926 -13.08
1927 0.4779
1928 26.63
1929 11.74
1930 -19.16
1931 -6.445
1932 -10
1933 25.8
1934 -9.225
1935 1.622
1936 -20.43
1937 8.422
1938 3.453
1939 24.2
1940 9.309
1941 9.394
1942 -3.692
1943 9.667
1944 -0.9878
1945 0.4605
1946 8.633
1947 0.2813
1948 8.696
1949 -1.806
1950 16.56
1951 6.517
1952 16.84
1953 2.421
1954 9.47
1955 6.866
1956 0.1567
1957 8.655
1958 0.4926
1959 1.61
1960 1.392
1961 7.424
1962 10.74
1963 10.64
1964 11.47
1965 9.296
1966 3.11
1967 6.777
1968 1.202
1969 6.48
1970 0.8091
1971 4.725
1972 3.328
1973 5.239
1974 14.19
1975 -0.2933
1976 4.987
1977 8.348
1978 -7.038
1979 -26.68
1980 3.041
1981 4.769
1982 -0.7842
1983 5.075
1984 -1.865
1985 -3.962
1986 -2.045
1987 -1.02
1988 -11.56
1989 -1.954
1990 -1.966
1991 -2.874
1992 -0.481
1993 -0.9529
1994 3.435
1995 3.899
1996 4.117
1997 4.544
1998 3.56
1999 18.84
2000 -5.538
2001 2.309
2002 -0.0999
2003 1.731
2004 4.345
2005 3.296
2006 5.274
2007 5.567
2008 3.978
2009 -2.149
2010 3.8
2011 5.625
2012 5.582
2013 4.597