Off on a slightly different tack -
This thread reminds me of an interesting article I read a year or so back in which the academic concerned lambasted television newsreaders and the media in general for repeating time, and time again, without any corroboration, an unsubstantiated claim made by self-interest groups, namely that Islam is the world's fastest growing religion.
Apparently it's not the fastest growing in the world - it's some obscure 'new' religion in China that has only been established since 1992! And is growing at a phenomenal rate. I think it's called:
Falun Gong or something. All depends how you define 'world's fastest growing'. Not difficult for a religion in China to gain world prominence, what with China's population of 1.3 billion currently representing 20% of the entire population of the world.
Anyway, fantabulous pop-pickers and chart-pickers, here's the latest top ten world religious league tables, how does your favourite fairy-in-the-sky rate? Up for promotion or relegation? - After all they can't ALL be true.
1st) Christianity: 2.1 billion
2nd) Islam: 1.5 billion
3rd) Secular/Nonreligious/Agnostic/Atheist: 1.1 billion
4th) Hinduism: 900 million
5th) Chinese traditional religion: 394 million
6th) Buddhism: 376 million
7th) primal-indigenous: 300 million
8th) African Traditional & Diasporic: 100 million
9th) Sikhism: 23 million
10th) Juche: 19 million
NationMaster - Encyclopedia: Claims to be the fastest growing religion