Here.
One of the most surprising datapoints here might be Saudi Arabia, where 5 percent say they’re atheist. Not a high number, to be sure, but higher than in many other countries, despite the extremely sensitive taboo against atheism in Saudi Arabia, which is also considered a serious crime. (In both Iraq and Afghanistan, for instance, less than 1 percent of respondents called themselves atheists.) We looked earlier at the surprisingly robust community of underground Saudi ath.
So the unfreer the nation, the more atheists?
Canada is a pretty “free” nation, but I doubt you’d get five percent to say they were definitely atheists.