Every year in the International Bulletin of Mission Research, Gordon Conwell Theological Seminary present an annual snapshot of global Christianity, a one-page version of which can be downloaded for free here. The table provides a statistical overview of the world’s 2.5 billion Christians and their activities.
https://gordonconwell.edu/center-for-global-christianity/resources/status-of-global-christianity/
Istorie Evanghelica 