It would be nice if this little nougat of information could be more widely known - especially by journalists.
The quoted figures for Scientology are taken from Tony Ortega's 2011 article in the Village Voice, which quotes former Scientology PR executive Jeff Hawkins as saying...
"I know that event attendance internationally was somewhere in the region of 25,000 to 35,000. The International 'Bodies in the Shop' (people actually in the orgs that week for service) was 16,000 to 18,000. IAS was struggling to get 40,000 members. Based on this and a lot of other information I was privy to, I estimate the actual number of Scientologists at a maximum of 40,000. That's on the high side."
Portugal is one of 33 countries with more than 40,000 active Jehovah's Witnesses - demonstrating the gulf in size between the two faiths.
The following list shows all countries with more than 40,000 JWs according to their reported peak publishers for 2013.
Though Scientology is undoubtedly a more quirky cult with its teachings of Lord Xenu and the Galactic Federation, it affects far less lives than Watchtower does.
Even so, the celeb factor gifted by the likes of Tom Cruise and John Travolta will likely allow it to hog the headlines over Watchtower for more years to come.