A thankfully relatively peaceful time for the Ottomans for that report. As said, no doubt sooner or later matters will change though, flashpoints or strife are never too far away. Good to hear that literacy is slowly edging its way up across the empire as well.
Education and literacy plays an important role in boosting the base POP promotion rate, boosting Research Points generated, and all that good stuff. So while I do not know if the growth is literally exponential in mathematical terms, it sure can feel like it in the game at times.