Christianity Today

Weekly church attendance in Western Europe as a whole is now about 5 percent. Though Protestantism has been harder hit—and for longer—the problem exists even in traditionally Catholic countries. In Austria, to take one instance, 78 percent of the population is nominally Catholic, but fewer than 15 percent of the people of Vienna go to Mass with any regularity. Priestly and religious vocations have suffered a dramatic drop. The state of religious knowledge is generally abysmal. A recent poll in Ireland found that only 5 percent of the young people aged 15 to 24 could say what the First Commandment was, only a third knew what the Church celebrates at Easter, and only half could name the four Gospels.

Here is a look at the current major religions look like in  percentages worldwide - Christians: 33.32% (Catholics 16.99%; Protestants 5.78%; Orthodox 3.53%; Anglicans, etc. 5.77%) Muslims: 21.01%, Hindus: 13.26%, Buddhists: 5.84%. 

What we have seen is a shift of the ‘centre of gravity’ of Christianity from the West to the Majority World or the Global South.