There are 5, 10, 20, 50, 100 yuan notes. The Australian dollar is the monetary unit of Australia. In the foreign exchange market, the Australian dollar is currently the fifth largest currency in the world, accounting for 6% of the total trading volume, second only to the US dollar, the euro, the Japanese yen and the British pound. In 20 10, the Australian dollar officially replaced the Swiss franc as the fifth largest currency in the world.