According to the CIA World Factbook, they are 23% Anglican, 15% Roman Catholic, 11% percent African Methodist Episcopal, and 51% atheist, ethnic, and other.
Christianity: 2.1 billion Islam: 1.5 billion Secular/Nonreligious/Agnostic/Atheist: 1.1 billion Hinduism: 900 million Chinese traditional religion: 394 million Buddhism: 376 million ...
Denominations are sub-groups of a "faith" or "religion" and are typified by the many sub-groups within Christianity, such as Methodist, Baptist, etc. The sub-groups within Judaism and Islam might...