If Google searches for “bed bugs” are any indication, the bed bug epidemic may have peaked:
Not being an expert on these insects, I can’t offer a solid explanation. Perhaps pest control methods- especially, the heat treatments- have finally been worked out to the point of catching up with the bed bugs, at least enough to maintain an equilibrium. Or perhaps people are now aware of the problem enough to implement appropriate countermeasures before they spread further.
Or maybe, in 2011, the bugs infiltrated Google’s servers and are short-circuiting searches while they quietly take over.