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 1.313
1822 1.314
1823 1.313
1824 1.313
1825 1.312
1826 1.313
1827 1.313
1828 1.314
1829 1.313
1830 1.313
1831 1.313
1832 1.313
1833 1.313
1834 1.312
1835 1.313
1836 1.313
1837 1.313
1838 1.314
1839 1.312
1840 1.313
1841 1.313
1842 1.312
1843 1.313
1844 1.314
1845 1.312
1846 1.314
1847 1.313
1848 1.313
1849 1.312
1850 1.313
1851 1.313
1852 1.313
1853 1.313
1854 1.313
1855 1.313
1856 1.312
1857 1.313
1858 1.314
1859 1.312
1860 1.313
1861 1.313
1862 1.314
1863 1.313
1864 1.312
1865 1.314
1866 1.312
1867 1.314
1868 1.313
1869 1.313
1870 1.313
1871 1.313
1872 1.314
1873 1.313
1874 1.313
1875 1.313
1876 1.313
1877 1.313
1878 1.314
1879 1.313
1880 1.312
1881 1.313
1882 1.313
1883 1.314
1884 1.313
1885 1.313
1886 1.313
1887 1.314
1888 1.313
1889 1.314
1890 1.312
1891 1.313
1892 1.314
1893 1.313
1894 1.313
1895 1.313
1896 1.313
1897 1.313
1898 1.313
1899 1.314
1900 1.313
1901 1.313
1902 1.313
1903 1.313
1904 1.313
1905 1.313
1906 1.313
1907 1.313
1908 1.313
1909 1.313
1910 1.313
1911 1.313
1912 1.313
1913 1.313
1914 1.313
1915 1.313
1916 1.313
1917 1.313
1918 1.313
1919 1.313
1920 1.312
1921 1.313
1922 1.313
1923 1.313
1924 1.313
1925 1.313
1926 1.313
1927 1.313
1928 1.313
1929 1.314
1930 1.313
1931 1.312
1932 1.313
1933 1.313
1934 1.314
1935 1.313
1936 1.313
1937 1.313
1938 1.313
1939 1.313
1940 1.313
1941 1.313
1942 1.313
1943 1.313
1944 1.313
1945 1.313
1946 1.313
1947 1.313
1948 1.313
1949 1.313
1950 1.313
1951 3.485
1952 3.274
1953 3.067
1954 0.1701
1955 1.965
1956 2.668
1957 -2.042
1958 0.666
1959 10.25
1960 6.474
1961 5.754
1962 5.476
1963 5.253
1964 4.953
1965 4.697
1966 4.464
1967 4.164
1968 4.062
1969 4.127
1970 4.258
1971 -5.627
1972 -2.231
1973 1.594
1974 -1.062
1975 3.766
1976 -0.8261
1977 -1.444
1978 7.883
1979 8.513
1980 34.91
1981 8.479
1982 3.194
1983 10.36
1984 4.466
1985 8.894
1986 2.496
1987 6.191
1988 2.207
1989 4.768
1990 3.761
1991 0.7787
1992 1.173
1993 1.386
1994 7.831
1995 8.966
1996 7.662
1997 8.673
1998 8.22
1999 9.494
2000 7.612
2001 6.919
2002 5.89
2003 5.474
2004 5.059
2005 6.514
2006 9.736
2007 8.155
2008 5.659
2009 3.182
2010 4.681
2011 4.563
2012 1.165
2013 0.2592