According to a July 2010 article from the official Xinhua news agency, the municipality has a population of 32.8 million, including 23.3 million farmers. Among them, 8.4 million farmers have become migrant workers, including 3.9 million working and living in urban areas of Chongqing.[74] as of 2010[update], the metropolitan area encompassing the central urban area was estimated by the OECD to have, a population of 17 million.[75][76]