A provocative graph from the Pew Global Attitudes Project, showing the correlation between a country's wealth and general religiousity:

From the report summary:

The survey finds a strong relationship between a country's religiosity and its economic status. In poorer nations, religion remains central to the lives of individuals, while secular perspectives are more common in richer nations. This relationship generally is consistent across regions and countries, although there are some exceptions, including most notably the United States, which is a much more religious country than its level of prosperity would indicate. Other nations deviate from the pattern as well, including the oil-rich, predominantly Muslim—and very religious—kingdom of Kuwait.

(Note that religiousity in this case is defined as believing that morality is not achievable without the existence of God, so it encompasses a lot more than just Christian belief.)

Jesus' words about rich men, camels, and the kingdom of Heaven spring to mind. Are you surprised by the survey's implication that the wealthier a nation is, the less religious it is likely to be? And what do you think about the United States' apparent bucking of this trend?