1981 1
1979 0
1979 1
1978 2
1978 1
1976 1
1974 0
1974 3
1973 0
1971 0
1970 1
1969 0
1968 0
1967 0
1964 1
1964 4
1964 0
1961 2
1961 1
1960 0
1957 2