From a 2013 study from the Center for the Study of Global Christianity at Gordon Conwell. This is a listing of the largest sending and receiving countries. Notice the difference between the largest senders and the largest senders per million church members.
Darren Carlson is the Founder and President of Training Leaders International. As President, Darren oversees the general direction of the ministry and serves as an advocate for pastors with little access to formal training and thoughtful cross-cultural theological engagement. You can connect with him on Facebook and Twitter.