Burma is one of the most ethnically diverse countries in the world. Within the eight main ethnic groups inhabiting the country, anthropologists have counted more than 130 distinctive subgroups. Of the estimated population of 55 million, the largest ethnic group, the Burmans, or Bamar, form about 68%. Occupying mainly territories in the various border regions are other ethnic groups, such as the Chin, Kachin, Karen, Mon, Rakhine, Shan, and Wa.