The 149 members of the National Assembly are elected for five-year terms from 18 multi-member constituencies with between five and nineteen seats using the multiple non-transferable vote system. Candidates need to gain the support of a local authority or a mass organisation to run for office.[2] In each constituency, voters vote for a list with as many candidates as there are seats to be filled, and the list with the most votes winning all of its seats. The seat distribution dependent on population; each province has a minimum of five seats, with one additional seat for every 50,000 inhabitants starting at 250,000 inhabitants, up to a maximum of 19 seats.
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