The Netherlands has a multi-party system, with numerous parties, in which usually no one party ever secures an overall majority of votes (except occasionally in very small municipalities, such as Tubbergen), so that several parties must cooperate to form a coalition government. This usually includes the party supported by a plurality of voters, with only three exceptions since World War II, in 1971, 1977 and 1982, when the Labour Party (PvdA) was the largest party but did not take part in the coalition.