Some figures show that non-denominational Muslims form the majority, while others indicate that most Muslims in the country are Sunnis following the Hanafi school. These include ethnic Kazakhs, who constitute about 60% of the population, as well as ethnic Uzbeks, Uighurs, and Tatars. Less than 1% are part of the Sunni Shafi`i school (primarily Chechens). There are also some Ahmadi Muslims. There are a total of 2,300 mosques, all of them are affiliated with the "Spiritual Association of Muslims of Kazakhstan", headed by a supreme mufti. Unaffiliated mosques are forcefully closed. Eid al-Adha is recognised as a national holiday.