59% of the world said that they think of themselves as religious person, 23% think of themselves as not religious whereas 13% think of themselves as convinced atheists.
MORE: http://www.skepticmoney.com/atheism-expanding-across-globe/
See also...
GLOBAL INDEX OF RELIGIOSITY AND ATHEISM - 2012
http://redcresearch.ie/wp-content/uploads/2012/08/RED-C-press-release-Religion-and-Atheism-25-7-12.pdf
