Source: The Houston Chronicle
http://www.gc.cuny.edu/folio/index.htm
On November 10, 2001, The Houston Chronicle reported that "while much is made of America's spiritual renewal, the number of adults with no religious identification more than doubled in the past decade, according to a...study, released recently by the Graduate Center of the City University of New York...The survey fills a gap left by the U.S. Census, which does not ask about religion...The survey also found that: Women are more likely than men to describe their outlook as religious. Catholic adults' proportion in the population dropped by nearly 2 percentage points, to 24.5 percent. Although Protestants remain in the majority, their proportion slid sharply from 60 percent to 52 percent. The number of adults who gave their religion as Jewish decreased from 3.1 million to 2.8 million...The number of Muslim adults has nearly doubled - to 1.1 million."