In Cambodia; Islam is the religion of the majority of Cham people and some Malay minorities. In 1975; there were reportedly 150;000 to 200;000 Muslims nationwide. However; persecution under the Khmer Rouge severely eroded their numbers. In 2009; the Pew Research Center estimated the Muslim population of Cambodia at 236;000. All of the Cham Muslims are Sunnis of the Shafi'i school. There is also a growing Ahmadiyya Muslim community in the country.