In 2010, the major party leadership had even endorsed reinstating the 35 seat number, but Liberal and Labor support was withdrawn the following year, with only the Greens keeping their commitment. Local government Tasmania has 29 local government areas. Local councils are responsible for functions delegated by the Tasmanian parliament, such as urban planning, road infrastructure and waste management. Council revenue comes mostly from property taxes and government grants. As with the House of Assembly, Tasmania's local government elections use a system of multi-seat proportional representation known as Hare–Clark. Local government elections take place every four years and are conducted by the Tasmanian Electoral Commission by full postal ballot. The next local government elections will be held during September and October 2022. Economy Traditionally, Tasmania's main industries have been mining (including copper, zinc, tin, and iron), agriculture, forestry, and tourism. Tasmania is on Australia's electrical grid and in the 1940s and 1950s, a hydro-industrialisation initiative was embodied in the state by Hydro Tasmania. These all have had varying fortunes over the last century and more, involved in ebbs and flows of population moving in and away dependent upon the specific requirements of the dominant industries of the time. The state also has a large number of food exporting sectors, including but not limited to seafood (such as salmon, abalone and crayfish). In the 1960s and 1970s there was a decline in traditional crops such as apples and pears, with other crops and industries eventually rising in their place. During the 15 years until 2010, new agricultural products such as wine, saffron, pyrethrum and cherries have been fostered by the Tasmanian Institute of Agricultural Research. Favourable economic conditions throughout Australia, cheaper air fares, and two new Spirit of Tasmania ferries have all contributed to what is now a rising tourism industry. About 1.7% of the Tasmanian population are employed by local government. Other major employers include Nyrstar, Norske Skog, Grange Resources, Rio Tinto, the Roman Catholic Archdiocese of Hobart, and Federal Group. Small business is a large part of the community life, including Incat, Moorilla Estate and Tassal. In the late 1990s, a number of national companies based their call centres in the state after obtaining cheap access to broad-band fibre optic connections. 34% of Tasmanians are reliant on welfare payments as their primary source of income. This number is in part due to the large number of older residents and