As of 2010, Christianity, Islam, Hinduism and Buddhism are some of the most widespread religions in the world, in terms of global population percentage. Folk religions and other religions such as Judaism make up a smaller percentage of the population.
While Christianity and Islam are the two largest religious groups in the world, the third-largest group comprises of people who consider themselves to be religiously unaffiliated.
Folk religionists, who make up 5.9 percent of the global population, include followers of traditional African religions, Chinese, Native American and Aboriginal Australian religions. Baha'i, Sikhism, Shintoism, Taoism and other small religions around the world, make up 0.8 percent of the population.