I dont know. But I do know that fundamentalist Steve Wohlberg got the witches and pagans pretty excited when his book (Hour of the Witch) contained an estimate that Wicca could be America's 3rd religion by 2012. EMediaWire is running with the story and the people at witchcrafttoday.com have blogged it..
But how would they measure it? Surely 20 million people are not going to join covens??? Maybe through websites and schools like The WitchSchool.com has enrolled 130,000 students. Just thinking . . .
Does Steve Wohlberg represent American Christians? Well. . . he really hates the Left Behind Series, so he might be popular with some emerging church people. . . (ha ha) but his rebuttal of LaHaye's book, entitled "The Left Behind Deception" seems to hint at the fact that Steve DOES NOT represent the entire American evangelical population, all of whom bought 3 copies EACH of the Left Behind series and now use them as ceiling insulation. However . . . he does have some good research and chapter one is worth a read. A better read, however, is from Phil Johnson (from the last post on Chinese Art) who has written "Wicca and Christians: Some Mutual Challenges"
From Steve's book Hour of the Witch (Chapter One is online)
"In 1998, the Chicago Tribune reported: “Neo-paganism is the fastest-growing religion in North America with the Internet being the prime means of proselytizing.”(6) In 2001, the American Religious Identification Survey (ARIS), conducted by the Graduate Center of the University of New York, indicated seventeen-fold growth in the Wiccan community between 1990 and 2001—the highest of any faith group monitored. “This would indicate a doubling in numbers of adherents about every 2.5 years.”(7) Curott estimates faster growth, suggesting “a doubling of size every 18 months.”(8) If either figure is accurate and if this trend continues, “Wicca [could] be the third largest religious group in the U.S. by about 2012, behind Christianity and Judaism.”(9)"