The 200 members of the Chamber of Deputies are elected from 14 multi-member constituencies (each usually electing between 5 and 25 members) using open list proportional representation, in which they can give preferential votes for up to four candidates on their chosen list. Seats are allocated using the d'Hondt method, with an electoral threshold of 5% nationwide for single parties, 10% for two-party alliances, 15% for three-party alliances and 20% for alliances of four or more parties. Candidates who receive preferential votes from more than 5% of voters are moved to the top of their list, and in cases where more than one candidate receives over 5% of the preferential votes, they are ranked in order of votes received.
