equitable, situate within the said Province, of the clear value of Fifty Pounds sterling money above all charges and encumbrances affecting the same, or having a leasehold estate in possession, situate within the said Province, the lease thereof having been registered in the General Registry Office, for the registration of deeds, and having three years to run at the time of voting, or containing a clause authorising the lessee to become the purchaser of the land thereby demised, or occupy a dwelling house of the clear annual value of Twenty-five Pounds sterling money." In 1907, the right to vote was extended to any person occupying a dwelling house, or "dwelling house and premises appurtenant thereto", with an annual rent of at least 17 pounds per annum (excluding any payment of rent by a wife to her husband); to a registered proprietor of a leasehold on which there were improvements to the value of at least 50 pounds and which were the property of the proprietor. At the same time, the franchise was also extended to ministers of religion, school head teachers, postmasters, railway stationmasters, and the officer in charge of a police station. A further extension of the franchise came in 1913, when the qualification of an occupier of a dwelling house was altered to include any inhabitant occupier, whether owner or tenant. In 1918, the right to vote for members of the upper house was extended to all those who had served in armed forced in the First World War. This was subsequently extended to Second World War veterans in 1940 and in 1969, it was simplified to apply to all Australian war veterans regardless of the war they served in. In 1969, the franchise was granted to any person who owned or rented property, regardless of the value of the property. Further, the franchise was extended to the wedded spouse of the owner or renter. Finally in 1973, all property qualifications were removed and the Council became a body elected via proportional representation by a single state-wide electorate from the same universal franchise as the House of Assembly. Since the following 1975 South Australian state election, no one party has had control of the state's upper house with the balance of power controlled by a variety of minor parties and independents. Electoral systems Originally, the electoral system for both houses was a form of plurality voting, where each