Jahr
1972
1973
9
1974
9
1975
9
1976
9
1977
9
1978
9
1979
9
1980
9
1981
9
1982
9
1983
9
1984
9
1985
9
1986
9
1987
9
1988
9
1989
9
1990
9
1991
9
1992
9
1993
8
1994
8
1995
7
1971
6
1996
6
1970
5
1910
4
1911
4
1912
4
1913
4
1914
4
1915
4
1916
4
1917
4
1918
4
1919
4
1920
4
1921
4
1922
4
1923
4
1924
4
1925
4
1926
4
1927
4
1928
4
1929
4
1930
4
1931
4
1932
4
mehr ...