My guess is 1 to 2 percent underground apostates coming with their wives or husbands (mostly wives).
25 percent have SERIOUS doubts about beliefs but figure where else are they going to go, and leaving is way too messy, and society might be right anyway, who knows. These may eventually come around at some point in their lives to being apostate.
50 percent on top of that have some doubts. The society is imperfect humans, but the truth is definitely there.
and less than 25 percent are true believers and suck up anything the WTBS says.