<Tr> <Td_colspan="5"> Pew Research Center, 2012 </Td> </Tr> <P> Adherents.com says "Sizes shown are approximate estimates, and are here mainly for the purpose of ordering the groups, not providing a definitive number". </P> <Table> <Tr> <Th> Religion </Th> <Th> Adherents </Th> <Th> Percentage </Th> </Tr> <Tr> <Td> Christianity </Td> <Td> 7009220000000000000 ♠ 2.2 billion </Td> <Td> 6999315000000000000 ♠ 31.50% </Td> </Tr> <Tr> <Td> Islam </Td> <Td> 7009160000000000000 ♠ 1.6 billion </Td> <Td> 6999223200000000000 ♠ 22.32% </Td> </Tr> <Tr> <Td> Secular / Nonreligious / Agnostic / Atheist </Td> <Td> 7009110000000000000 ♠ ≤ 1.1 billion </Td> <Td> 6999153500000000000 ♠ 15.35% </Td> </Tr> <Tr> <Td> Hinduism </Td> <Td> 7009100000000000000 ♠ 1 billion </Td> <Td> 6999139499999999999 ♠ 13.95% </Td> </Tr> <Tr> <Td> Chinese traditional religion </Td> <Td> 7008394000000000000 ♠ 394 million </Td> <Td> 6998550000000000000 ♠ 5.50% </Td> </Tr> <Tr> <Td> Buddhism </Td> <Td> 7008376000000000000 ♠ 376 million </Td> <Td> 6998525000000000000 ♠ 5.25% </Td> </Tr> <Tr> <Td> Ethnic religions excluding some in separate categories </Td> <Td> 7008300000000000000 ♠ 300 million </Td> <Td> 6998419000000000000 ♠ 4.19% </Td> </Tr> <Tr> <Td> African traditional religions </Td> <Td> 7008100000000000000 ♠ 100 million </Td> <Td> 6998139999999999999 ♠ 1.40% </Td> </Tr> <Tr> <Td> Sikhism </Td> <Td> 7007300000000000000 ♠ 30 million </Td> <Td> 6997320000000000000 ♠ 0.32% </Td> </Tr> <Tr> <Td> Spiritism </Td> <Td> 7007150000000000000 ♠ 15 million </Td> <Td> 6997210000000000000 ♠ 0.21% </Td> </Tr> <Tr> <Td> Judaism </Td> <Td> 7007140000000000000 ♠ 14 million </Td> <Td> 6997200000000000000 ♠ 0.20% </Td> </Tr> <Tr> <Td> Bahá'í </Td> <Td> 7006700000000000000 ♠ 7.0 million </Td> <Td> 6997100000000000000 ♠ 0.10% </Td> </Tr> <Tr> <Td> Jainism </Td> <Td> 7006420000000000000 ♠ 4.2 million </Td> <Td> 6996600000000000000 ♠ 0.06% </Td> </Tr> <Tr> <Td> Shinto </Td> <Td> 7006400000000000000 ♠ 4.0 million </Td> <Td> 6996600000000000000 ♠ 0.06% </Td> </Tr> <Tr> <Td> Cao Dai </Td> <Td> 7006400000000000000 ♠ 4.0 million </Td> <Td> 6996600000000000000 ♠ 0.06% </Td> </Tr> <Tr> <Td> Zoroastrianism </Td> <Td> 7006260000000000000 ♠ 2.6 million </Td> <Td> 6996400000000000000 ♠ 0.04% </Td> </Tr> <Tr> <Td> Tenrikyo </Td> <Td> 7006200000000000000 ♠ 2.0 million </Td> <Td> 6996200000000000000 ♠ 0.02% </Td> </Tr> <Tr> <Td> Neo-Paganism </Td> <Td> 7006100000000000000 ♠ 1.0 million </Td> <Td> 6996100000000000000 ♠ 0.01% </Td> </Tr> <Tr> <Td> Unitarian Universalism </Td> <Td> 7005800000000000000 ♠ 0.8 million </Td> <Td> 6996100000000000000 ♠ 0.01% </Td> </Tr> <Tr> <Td> Rastafari </Td> <Td> 7005600000000000000 ♠ 0.6 million </Td> <Td> 6996100000000000000 ♠ 0.01% </Td> </Tr> <Tr> <Th> total </Th> <Th> 7009716700000000000 ♠ 7167 million </Th> <Th> 7000100000000000000 ♠ 100% </Th> </Tr> </Table> <Tr> <Th> Religion </Th> <Th> Adherents </Th> <Th> Percentage </Th> </Tr>

What is most popular religion in the world