In May 2010, a survey of the Okinawan people conducted by the "Mainichi Shimbun" and the "Ryūkyū Shimpō", found that 71% of Okinawans surveyed thought that the presence of Marines on Okinawa was not necessary (15% said it was necessary). When asked what they thought about 62% of exclusive use United States Forces Japan bases being concentrated on Okinawa, 50% said that the number should be reduced and 41% said that the bases should be removed. When asked about the US-Japan security treaty, 55% said it should be a peace treaty, 14% said it should be abolished, and 7% said it should be maintained.