15.5 percent in Mount Gambier and 16.4 percent in Millicent. It was the first time that a Labor government in South Australia had been re-elected for a third term, and would be the first seven-year-incumbent Labor government. The election was also the first in South Australia where both major parties contested all lower house seats. Upper house reforms Historically, the Legislative Council (the upper house) had been dominated by an LCL majority for decades due to the Playmander electoral malapportionment as well as the limit on upper house voting rights to the wealthier classes with suffrage dependent on certain property and wage requirements. However they were highly independent and often obstructive to both major parties. Originally the Legislative Council had fixed staggered terms and elections were held separately from lower house elections, which would later be changed by the introduction of joint elections in the 1980s. The 1975 election saw the introduction of universal suffrage for the Legislative Council and the introduction of a statewide single electorate. It also increased the number elected at each election from 10 to 11, meaning the house increased from 20 to 21 members, and would become a 22-member house from 1979 onwards. Labor won 6 seats, the Liberal Party won 3, and the Liberal Movement won 2; giving total numbers of Labor 10, Liberal 9, and Liberal Movement 2; giving the Liberal Movement the balance of power. The Liberal Movement members rejoined the Liberal Party in 1976, giving the Liberals a majority in the upper house. Aftermath Following the close result of the election where Labor formed minority government, initial one vote one value electoral reform was enacted by Dunstan which would later be amended by future Labor premier John Bannon, after winning the 1989 election on 48.1 percent of the two-party vote. However, these winning minorities were closer than those of the Playmander period and did not occur as a result of malapportionment or weighting. Indeed, some metropolitan seats saw more than three times the number of voters than in some rural seats, something that would be rectified by the one vote one value electoral reform. It became the first and only state from 1989 to legislate the Electoral Commission of South Australia should redraw boundaries after each election with the objective that the party which receives over 50 percent of the statewide two-party vote at the forthcoming election should win the two-party