1971 Viet Nam, Dem. Rep. (North)
1956 Viet Nam, Dem. Rep. (North)
1960 Viet Nam, Dem. Rep. (North)
1962 Viet Nam, Dem. Rep. (North)
1963 Viet Nam, Dem. Rep. (North)
1965 Viet Nam, Dem. Rep. (North)
1966 Viet Nam, Dem. Rep. (North)
1968 Viet Nam, Dem. Rep. (North)
1970 Viet Nam, Dem. Rep. (North)
1972 Viet Nam, Dem. Rep. (North)
1973 Viet Nam, Dem. Rep. (North)