Here are some of the findings from the summary:
- Christians have declined in overall percentage share and in absolute numbers.
- Religious intermarriage is on the rise.
- Switching religion is a common occurrence.
- Evangelical Protestantism is the only major Christian group that has gained more members than lost via religious switching.
- The Protestant and Catholic shares have both declined.
- Orthodox Christian, Mormon, and Jehovah's Witnesses, and Jewish shares have remained steady.
- Muslim and Hindu shares have both increased, yet the shares are quite low (each less than 1%).
- Atheist and Agnostic have both increased.