Updates

For example, the Global 24-hour change query shows that every day on average over the last 10 years the global Christian population increased by 79,000 people and the Muslim population increased by 78,000 people. The 24-hour change at the end of the period, in 2015, is even higher: 88,000 Christians and 84,000 Muslims.
New queries on the "Religion" page report the 24-hour population change by religion in each country and region and globally.

Membership of the UN Security Council changes each year on January 1st. The question of how the religious demography of the Security Council differs from that of the world and differs over time is addressed in this query: Security Councils over time. Some of the implications are discussed in the Security_Council_religious_makeup.pdf briefing document. The religious demography of other organizations are also available on the "Country/Region" page.