coup. During the Third Republic, which lasted from 1979 to 1981, the dominant party in the National Assembly was the People's National Party (PNP), led by Hilla Limann, which won 71 out of 104 seats in elections held on 18 June 1979. After the military intervened in 1981, all elected institutions were dissolved and political party activity was prohibited. Parliament of the Fourth Republic After 11 years of military rule, a new constitution was approved in a 1992 referendum. Presidential elections were held in November and were won by Jerry Rawlings, leader of the 1981 coup and subsequent military ruler. The opposition contested the results and boycotted the December parliamentary elections. As a result, Rawlings' National Democratic Congress (NDC) won 189 out of 200 seats in Parliament. All parties participated in the 1996 parliamentary elections. The NDC won 133 out of a total of 200 seats, while the main opposition New Patriotic Party (NPP) won 60. Two small parties won the remaining seats. The 2000 elections were significant in that President Rawlings was constitutionally barred from seeking another term. In the presidential poll, John Kufuor of the NPP defeated the NDC candidate John Atta Mills in a run-off election. In the 200-seat Parliament, the NPP won 100, followed by the NDC's 92. Small political parties and independents won the remaining seats. Kufuor was re-elected in 2004 and the New Patriotic Party (NPP) won 128 out of 230 seats in the concurrent parliamentary election. The main opposition National Democratic Congress (NDC) won 94, while two other parties - The People's National Convention (PNC) and Convention People's Party (CPP) - won 4 and 3 seats, respectively. An Independent captured the remaining seat. The simple majority (or First Past the Post) voting system is used in Ghana's parliamentary elections. Since 2012, the country is divided into 275 single-member constituencies. Members serve four-year terms. Leadership structure Speaker - The Speaker presides over the Parliament and enforces observance of all rules that govern its conduct. After a general election the majority party in Parliament, in consultation with other parties, nominates a Speaker. The Speaker cannot be a Member of Parliament though they must possess the qualifications to stand for elections as a Member of Parliament, such person on appointment as Speaker must resign and declare the seat occupied in Parliament as vacant. The Speaker is assisted by two Deputy Speakers (First and Second Deputy Speakers),