Despite guaranteeing religious freedom in the constitution, the government officially recognises only six religions: Islam, Protestantism, Roman Catholicism, Hinduism, Buddhism, and Confucianism; with indigenous religions only partly acknowledged. With 231 million adherents in 2018, Indonesia is the world's most populous Muslim-majority country, with Sunnis being the majority (99%). The Shias and Ahmadis, respectively, constitute 1% (1–3 million) and 0.2% (200,000–400,000) of Muslims. Almost 11% of Indonesians are Christians, while the rest are Hindus, Buddhists, and others. Most Hindus are Balinese, and most Buddhists are Chinese Indonesians.