When reading the latest survey done by Gordon Conwell, I was especially interested in Eastern Europe. Well, it seems that there is a hope for the ‘marginalized groups’ which are the evangelicals in the research language. Growth is expected at a rate of 1.2% annually.
At the height of Communism in 1970, the region of Eastern Europe was only 57.2% Christian, the lowest percentage of any region in the global North for that time period. After the fall of the Soviet Union in 1991, droves of agnostics and atheists came into to the churches. By 2010, the region claimed 84.0% Christian adherence, similar to the situation in 1910 (89.6% Christian). Looking toward 2020, Christian gains are likely to be more modest, with a 0.02% average annual growth rate between 2010 and 2020.
The whole document (92 pages) can be found at the following link of Center for the Study of Global Christianity.