It is also considered as a commodity currency due to the large quantities of natural resources exported by Australia. The Reserve Bank of Australia is tasked with the responsibility of pursuing monetary stability. As a floating currency, the AUD is popular among traders because of its high-interest rates, economic stability and the fact that the government does not interfere as much in the currency market. The Australian dollar is available in coins of 5, 10, 20 and 50 cents and one and two dollar denominations and banknotes of 5, 10, 20, 50 and 100 dollar denominations. Australian bills are made of polymer and feature images of famous Australians from both the past and present.