By countries

gold - 4
silver - 11
bronze - 9

1991 - 2 place
1984 - 2 place
1983 - 2 place
1982 - 2 place
1981 - 2 place
1976 - 1 place
1973 - 2 place
1970 - 2 place
1969 - 1 place
1968 - 2 place
1967 - 1 place
1966 - 2 place
1965 - 2 place
1962 - 1 place
1948 - 2 place