World Christian Database

2015 and 2020

Data on the adherents of each religion in each country are now available for the additional two data points of 2015 and 2020.

The religion over time series now includes the years 1900, 1950, 1970, 2000, 2005, 2010, 2015, 2020, 2025 and 2050.

The additional years are part of the preparation for changing the "base year" of the World Christian Database from 2010 to 2015, a move that is planned to take place in 2014.

Until then, the additional years do not appear by default in the sample religion queries, but they are available for users to add as required.

See in particular the Religion over time home page for sample queries to which 2015 and 2020 can be added.

Also, a topical sample spreadsheet (available for a limited time) showing Roman Catholics by UN Region, 1900-2020 utilizes the new 2020 data and includes 50-year and 10-year average annual growth rates to 2020.