Elections in Indonesia have taken place since 1955 to elect a legislature. At a national level, Indonesian people did not elect a head of state – the president – until 2004. Since then, the president is elected for a five-year term, as are the 575-member People's Representative Council (Dewan Perwakilan Rakyat, DPR), the 136-seat Regional Representative Council (Dewan Perwakilan Daerah), in addition to provincial and municipal legislative councils. Members of the People's Representative Council are elected by proportional representation from multi-candidate constituencies. Currently, there are 77 constituencies in Indonesia, and each returns 3-10 Members of Parliament based on population. Under Indonesia's multi-party system, no one party has yet been able to secure an outright majority in a democratic election; parties have needed to work together in coalition governments. Members of the Regional Representative Council are elected by single non-transferable vote. There, Indonesia's 34 provinces treated as constituencies and, regardless of the size and population, every province return four senators. Starting from the 2015 unified local elections, Indonesia started to elect governors and mayors simultaneously on the same date. The voting age in Indonesia is 17, but anyone who has an ID card (KTP) can vote since persons under 17 who are or were married can get a KTP. Elections are conducted by the General Elections Commission (KPU) and supervised by the General Election Supervisory Agency (Bawaslu); their activities were overseen by Elections Organizer Honorary Council (DKPP). Electoral principles Indonesian election conduct abides by six principles of direct, general, free, confidential, honest, and fair. Those principles are abbreviated and commonly propagated as "Luber-jurdil". The first four principles of "Luber" are adopted by the New Order regime from the 1971 election. After the 1998 reform and the following political liberalisation, two extra principles of "Jurdil" are adopted for the first time in the 1999 election. Direct (langsung): Voters shall vote on their own without any intermediary. General (umum): All Indonesians that already satisfy voters' criteria, shall be able to vote without any restriction. Free (bebas): Voters shall be able to vote by their own conscience without any coercion to vote for a particular candidate. Confidential (rahasia): Secret ballot are guaranteed, and voters' choice shall not be known to others but themselves. Honest (jujur): Voters, candidates, and electoral institutions shall perform their duty in complete honesty. Fair (adil): Voters and candidates shall receive equal treatment by the law, with no particular voters or