In the 1960s, bounties were still being paid in Western Australia for killing emus,[2] but since then, wild emus have been granted formal protection under the Environment Protection and Biodiversity Conservation Act 1999.[2] Their occurrence range is between 4,240,000 and 6,730,000 km2 (1,640,000–2,600,000 sq mi), and a 1992 census suggested that their total population was between 630,000 and 725,000.[22] As of 2012[update], the International Union for Conservation of Nature considers their population trend to be stable and assesses their conservation status as being of least concern.[2] The isolated emu population of the New South Wales North Coast Bioregion and Port Stephens is listed as endangered by the New South Wales Government.[101]