sentences:  The next elections were scheduled for late 1996, although pressure has been mounting for these elections, to be advanced also.The 1987 constitution replaced the bicameral Congress, which had existed under previous constitutions, with a unicameral National Assembly.The makeup of the National Assembly, first established under the 1984 decree and confirmed by the 1987 constitution, consists of ninety members directly elected by a system of proportional representation plus any unelected presidential or vice presidential candidates who receive a certain percentage of the vote.