http://www.reference...ople/Religions/
World: People: Religions
Christians 32.88% (of which Roman Catholics 17.39%, Protestants 5.62%, Orthodox 3.54%, Anglicans 1.31%), Muslims 19.54%, Hindus 13.34%, Buddhists 5.92%, Sikhs 0.38%, Jews 0.24%, other religions 12.6%, non-religious 12.63%, atheists 2.47% (2000 est.)
2.47% atheists is much more than I would have expected. I'm sure the 12.63% people in the, "non religious" group wouldn't mind living for ever if given the chance as well.