One-man-one vote was adopted in 1899 in the Legislative Assembly, and expanded to the Legislative Council in 1937. Wealth requirements for voting in the Legislative Assembly were removed in 1857, but this reform was not made to the Legislative Council until 1950. Furthermore, the method of voting was changed; first-past-the-post voting was replaced with preferential voting for the Legislative Assembly in 1911 and compulsory voting introduced in 1923. Meanwhile, the preferential voting was used for elections to the Legislative Council from 1921, and elections made compulsory in 1935. Voting was further expanded in 1973, when the voting age was lowered from 21 to 18. The minimum age for membership of either house was also lowered to 18. Expansion of voting divisions The number of divisions within each of the chambers was gradually increased over time. The Legislative Council was expanded from 30 members representing 6 provinces to its peak of 48 members spread throughout 14 provinces by 1888. The number of both provinces and members continued to change until it remained relatively fixed by 1974, when 44 members represented 22 provinces. Furthermore, the members were distributed evenly, rather than a mixture of single and multi-member districts as the chamber was at its creation. The Legislative Assembly has similarly fluctuated in size over time. It contained 60 seats within its first iteration in 1856, eventually growing to as many as 95 by 1900. It was not until 1958 when all divisions were up for election at the same time, though, when all of the then 66 seats were contested. The Assembly reached 88 seats in 1985 and has remained at this number ever since. Current voting methods and districts Until November 2006, the Legislative Council had 44 members serving eight-year terms, elected from single-member constituencies, with half the seats falling vacant every four years. Since then it has had 40 members, each serving four-year terms. They are elected from eight multi-member constituencies, each returning five members, and elected by proportional representation. Since 2006, the Legislative Assembly has had 88 members elected for fixed four-year terms from single-member constituencies, using preferential voting. Fixed four-year terms were introduced for both houses in 2002, replacing the previous provision that allowed the government to expire after no more than three years. Composition and electoral systems Parliament consists of two chambers: the Legislative Assembly and the Legislative Council. It is overseen by the Governor, on behalf