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 0
1822 0
1823 0
1824 0
1825 0
1826 0
1827 0
1828 0
1829 0
1830 0
1831 0
1832 0
1833 0
1834 0
1835 0
1836 0
1837 0
1838 0
1839 0
1840 0
1841 0
1842 0
1843 0
1844 0
1845 0
1846 0
1847 0
1848 0
1849 0
1850 0
1851 0
1852 0
1853 0
1854 0
1855 0
1856 0
1857 0
1858 0
1859 0
1860 0
1861 0
1862 0
1863 0
1864 0
1865 0
1866 0
1867 0
1868 0
1869 0
1870 0
1871 0
1872 0
1873 0
1874 0
1875 0
1876 0
1877 0
1878 0
1879 0
1880 0
1881 0
1882 0
1883 0
1884 0
1885 0
1886 0
1887 0
1888 0
1889 0
1890 0
1891 0
1892 0
1893 0
1894 0
1895 0
1896 0
1897 0
1898 0
1899 0
1900 0
1901 0
1902 2.785
1903 2.785
1904 2.785
1905 2.785
1906 2.785
1907 2.785
1908 2.785
1909 2.785
1910 2.785
1911 2.785
1912 2.168
1913 2.168
1914 2.168
1915 2.168
1916 2.168
1917 2.168
1918 2.168
1919 2.168
1920 2.168
1921 2.168
1922 1.47
1923 1.47
1924 1.47
1925 1.47
1926 1.47
1927 4.392
1928 4.392
1929 4.392
1930 4.392
1931 4.392
1932 1.772
1933 1.772
1934 1.772
1935 1.772
1936 1.772
1937 1.772
1938 1.772
1939 1.772
1940 1.772
1941 1.772
1942 1.772
1943 1.772
1944 1.772
1945 1.772
1946 7.041
1947 7.041
1948 7.041
1949 7.041
1950 7.041
1951 4.161
1952 4.165
1953 4.226
1954 4.252
1955 1.782
1956 8.376
1957 4.085
1958 3.583
1959 3.496
1960 2.576
1961 4.937
1962 -0.3294
1963 -1.968
1964 -2.347
1965 13.46
1966 9.989
1967 9.643
1968 -1.3
1969 6.423
1970 1.826
1971 14.85
1972 10.66
1973 8.811
1974 7.051
1975 4.087
1976 4.359
1977 5.604
1978 9.717
1979 5.039
1980 0.7938
1981 -10.81
1982 1.443
1983 4.215
1984 3.918
1985 4.707
1986 2.033
1987 -0.9904
1988 3.288
1989 4.063
1990 4.771
1991 7.801
1992 -7.918
1993 10.77
1994 -11.59
1995 9.022
1996 9.672
1997 3.792
1998 2.358
1999 1.243
2000 1.576
2001 -4.975
2002 2.859
2003 -3.785
2004 15.82
2005 3.269
2006 4.667
2007 9.619
2008 8.336
2009 8.944
2010 6.68
2011 4.546
2012 2.265
2013 5.398