"Studies on the demographics of atheism have concluded that self-identified atheists comprise anywhere from 2% to 11% of the world's population, whereas irreligious individuals comprise anywhere from 10% to 22% of the world's population. Several comprehensive global polls on the subject have been conducted by Gallup International: their 2012 poll found that 13% of respondents were \"convinced atheists\" and their 2015 poll indicated that 11% were \"convinced atheists\"."@en . . .