The Australian dollar (AUD) is the official currency of the Commonwealth of Australia. It has been in use since 14 February 1966. The Australian dollar is also used on Christmas Island, Cocos (Keeling) Islands, Norfolk Island, and the independent Pacific Islands of Kiribati, Nauru and Tuvalu. In Australia, the dollar symbol $ is usually used. The signs A$ or AU$ are often used to show that it is the Australian dollar. It is subdivided into 100 cents.
In 2011 the Australian dollar was the fifth-most-traded currency in world.[1] The most traded currencies were the US dollar, the Euro, the yen, and the pound sterling.
The Australian dollar is liked by people who trade in currencies. This is because Australia has high interest rates and little government control on currency trading. Australia's economy and political systems are also seen to be stable.