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 1.145
1822 1.145
1823 1.145
1824 1.145
1825 1.145
1826 1.145
1827 1.145
1828 1.145
1829 1.145
1830 1.145
1831 1.145
1832 1.145
1833 1.145
1834 1.145
1835 1.145
1836 1.145
1837 1.145
1838 1.145
1839 1.145
1840 1.145
1841 1.145
1842 1.145
1843 1.145
1844 1.145
1845 1.145
1846 1.145
1847 1.145
1848 1.145
1849 1.145
1850 1.145
1851 1.145
1852 1.145
1853 1.145
1854 1.145
1855 1.145
1856 1.145
1857 1.145
1858 1.145
1859 1.145
1860 1.145
1861 1.145
1862 1.145
1863 1.145
1864 1.145
1865 1.145
1866 1.145
1867 1.145
1868 1.145
1869 1.145
1870 1.145
1871 1.145
1872 1.145
1873 1.145
1874 1.145
1875 1.145
1876 1.145
1877 1.145
1878 1.145
1879 1.145
1880 1.145
1881 1.145
1882 1.145
1883 1.145
1884 1.145
1885 1.145
1886 1.145
1887 1.145
1888 1.145
1889 1.145
1890 1.145
1891 1.145
1892 1.145
1893 1.145
1894 1.145
1895 1.145
1896 1.145
1897 1.145
1898 1.145
1899 1.145
1900 1.145
1901 1.145
1902 1.145
1903 1.145
1904 1.145
1905 1.145
1906 1.145
1907 1.145
1908 1.145
1909 1.145
1910 1.145
1911 1.145
1912 1.145
1913 1.145
1914 2.784
1915 2.785
1916 2.784
1917 2.785
1918 2.784
1919 2.784
1920 2.785
1921 2.784
1922 2.784
1923 2.785
1924 2.784
1925 2.784
1926 2.785
1927 2.784
1928 2.784
1929 2.784
1930 2.785
1931 2.785
1932 2.785
1933 2.784
1934 2.784
1935 2.784
1936 2.784
1937 2.785
1938 2.784
1939 2.784
1940 2.785
1941 2.784
1942 2.785
1943 2.785
1944 2.784
1945 2.784
1946 2.785
1947 2.784
1948 2.784
1949 2.785
1950 2.784
1951 3.795
1952 3.759
1953 3.754
1954 3.858
1955 3.96
1956 3.966
1957 4.043
1958 4.083
1959 4.029
1960 2.437
1961 4.856
1962 3.625
1963 4.179
1964 2.379
1965 3.758
1966 2.895
1967 -0.9265
1968 6.749
1969 -6.235
1970 8.822
1971 0.05875
1972 6.68
1973 -5.422
1974 4.206
1975 8.026
1976 9.363
1977 -3.32
1978 -4.648
1979 6.258
1980 -3.88
1981 -1.24
1982 14.76
1983 2.266
1984 -4.814
1985 3.638
1986 4.73
1987 4.037
1988 5.103
1989 -1.686
1990 4.573
1991 -0.3319
1992 2.359
1993 -2.04
1994 2.995
1995 5.16
1996 4.929
1997 4.821
1998 5.515
1999 4.952
2000 5.737
2001 4.736
2002 1.217
2003 6.816
2004 6.058
2005 5.597
2006 2.443
2007 4.957
2008 3.682
2009 2.166
2010 4.279
2011 2.617
2012 3.182
2013 3.751