Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the world’s sixth-largest country by total area. Canbera is capital of Australia. It has six States and two territories. Australia has maintained a stable liberal democratic political system that functions as a federal parliamentary democracy and constitutional monarchy. The federation comprises six states and several territories. Australia is a developed country and one of the wealthiest in the world, with the world’s12th-largest economy. In 2012 Australia had the world’s fifth-highest per capita income. Australia ranks highly in many international comparisons of national performance, such as quality of life, health, education, economic freedom, and the protection of civil liberties and political rights.