Exact population: 20,264,082 (July 2006 est.) Literacy: Total population: 100%; male: 100%; female: 100% Ethnicities: Caucasian 92%, Asian 7%, aboriginal and other 1% Land boundaries: 0 km Terrain: Mostly low plateau with deserts; fertile plain in southeast Extremes: Lowest point: Lake Eyre -15 m; highest point: Mount Kosciuszko 2,229 m Imports: US 14.8%, China 12.7%, Japan 11.8%, Germany 5.8%, Singapore 4.4%, UK 4.1% (2004) Exports: Japan 18.7%, China 9.2%, US 8.1%, South Korea 7.8%, New Zealand 7.4%, India 4.6%, UK 4.2% (2004) Industries: Mining, industrial and transportation equipment, food processing, chemicals, steel