Australia has no state religion; Section 116 of the Australian Constitution prohibits the federal government from making any law to establish any religion, impose any religious observance, or prohibit the free exercise of any religion. In the 2011 census, 61.1% of Australians were counted as Christian, including 25.3% as Roman Catholic and 17.1% as Anglican; 22.3% of the population reported having "no religion"; 7.2% identify with non-Christian religions, the largest of these being Buddhism (2.5%), followed by Islam (2.2%), Hinduism (1.3%) and Judaism (0.5%). The remaining 9.4% of the population did not provide an adequate answer.