The fourth National Assembly lasted from 1971-1975 and organised five sessions.
The fifth National Assembly lasted from 1975 - 1976. It included 424 deputies.
The sixth National Assembly lasted from 1976 - 1981. It adopted the 1980 Consitution, opening a new development stage of Vietnam.
The seventh National Assembly lasted from 1981-1987 and organised twelve sessions.
The eighth National Assembly lasted from 1987 to 1992, during which the 1992 Constitution was adopted.