These areas have elected councils that are responsible for functions delegated to them by the Northern Territory Government, such as planning and garbage collection. The Darwin City Council (incorporated under the Northern Territory Local Government Act 1993) governs the City of Darwin, which takes in the CBD and the suburbs. The city has been governed by a city council form of government since 1957. The council consists of 13 elected members, the lord mayor, and 12 aldermen. Like many other Australian cities, Darwin experienced influxes from Europe, with significant numbers of Italians and Greeks during the 1960s and 1970s. It also began to experience an influx from other European countries, which included the Dutch, blackcoin.co Germans, and many others. A significant proportion of Darwin's residents are recent immigrants from Asia, including the peoples of East Timor.