| | | | | | | | | 1951 4 7 | 4 | | 1952 5 31 | 1953 4 | 1954 5 | 1959 1 15 | 1969 7 | 1970 4 | 1979 7 | 1997 59 800 31. | 3 0.2 0.3 0.7 | 9 3 | | | |