"Secular/Nonreligious/Agnostic/Atheist: 1.1 billion
"
Wow! We're third on the list. Amazing. We're almost as many as the Muslims. And a larger group than the Roman Catholics. I guess we're mainstream, then.
Part of the 1.1 billion, even though the Catholics still count me as one of them (see post above). I also enjoy studying religion, despite being of the secular humanist bent.