Pew Research Center Staff

Although Europe and the Americas still are home to a majority of the world’s Christians (63%), that share is much lower than it was in 1910 (93%).

Barely half of all adults (51%) in the United States --a record low -- are currently married.

As the 2008 election approached, the public mood about the economy was not very good, but it was better than it is today. At that time, about half (48%) of Americans said jobs were difficult to find, a number that increased to 79% in 2011.

Following the Jan. 3 Iowa caucuses four years ago, 40% of Americans said that the amount of press coverage it received was too much.

The biggest one-week story of the year was the May 1 killing May of Osama bin Laden by Navy Seals, which filled 69% of that week’s newshole. It was the biggest weekly story ever measured by the Pew Research Center's Project for Excellence in Journalism since they began tracking coverage in January 2007.

Roughly two-thirds (67%) of social media users say that staying in touch with current friends and family members is a major reason they use these social media sites like Facebook, Twitter, MySpace or LinkedIn.

One-third of voters say their own representative in Congress should not be re-elected.

More than half (52%) of combat veterans who served in the post-9/11 wars said they had suffered emotionally traumatic or distressing experiences while in the military.

Nearly three-quarters (73%) of Democrats say that what bothers them most about the tax system is their belief that wealthy people are not paying their fair share; only 38% of Republicans agree.

The religious traditions with the largest number of advocacy groups in Washington, D.C. are Catholicism (19% of all groups) and evangelical Protestantism (18% of all groups).