http://www.people-press.org/2002/12/19/among-wealthy-nations/

"Religion is much more important to Americans than to people living in other wealthy nations. Six-in-ten (59%) people in the U.S. say religion plays a very important role in their lives. This is roughly twice the percentage of self-avowed religious people in Canada (30%), and an even higher proportion when compared with Japan and Western Europe. Americans’ views are closer to people in developing nations than to the publics of developed nations."