Australia officially known as the Commonwealth of Australia, is an Oceanian 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.
The population of 24 million is highly urbanised and heavily concentrated in the eastern states and on the coast.
Australia is a developed country and one of the wealthiest in the world, with the world’s 12th-largest economy. In 2014 Australia had the world’s fifth-highest per capita income. Australia’s military expenditure is the world’s 13th-largest. With the second-highest human development index globally, 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.