Present estimates of the number of Protestants range from the official government figure of 500,000 to claims by churches of 1 million. Growth has been most pronounced among members of minority peoples (Montagnards) such as the Hmong, Ede, Jarai, and Bahnar, with internal estimates claiming two-thirds of all Protestants in Vietnam are members of ethnic minorities. By some estimates, the growth of Protestant believers in Vietnam has been as much as 600 percent over the past ten years. Some of the new converts belong to unregistered evangelical house churches, whose followers are said to total about 200,000.