Parliament of Australia
From 1901 to 1949, the House consisted of either 74 or 75 members (the Senate had 36). Between 1949 and 1984, it had between 121 and 127 members (the Senate had 60 until 1975, when it increased to 64). In 1977, the High Court ordered that the size of the House be reduced from 127 to 124 members to comply with the nexus provision. In 1984, both the Senate and the House were enlarged; since then the House has had between 148 and 150 members (the Senate has 76).
2007 Australian federal election
Labor and the Coalition won 18 seats each in the half-Senate election. The Greens won three seats, with Independent Nick Xenophon being elected on primary votes alone. This took the 76-member Senate total to 37 Coalition, 32 Labor, 5 Green, 1 Family First, and 1 Independent. With a majority being 39 senators, when the new Senate met after 1 July 2008, the balance of power was shared between Xenophon, Family First's Steve Fielding and the five Greens. Xenophon, although reported as left-of-centre, indicated plans to work closely with the renegade National, Senator Barnaby Joyce. If sufficient Coalition senators voted for government legislation, support from the crossbench was not required.