The World Christian database is updated twice a year, generally in January and July.
Another six new fields show Evangelicals by denomination over time …
Pentecostals and Charismatics 1970-2010, are shown by denomination in six new fields …
Data on 18 categories of religion, including non-religious, by country, province, and people.
Data on all religions, Christian activities, and trends.
Membership data, year begun, and rates of change.
Population and religion data on all major cities & provinces.
Detailed information covering religion, culture, and geography.
A repository of historical data, including a chronology of Christianity from the 1st to 21st centuries.