I am trying to get an estimate of the presence rate of the movable nu in antevocalic contexts in Hellenistic inscriptions. The resources that I have consulted (the geographical collections of Schweizer, Meisterhans, Nachmanson…) provide results that surprise me a lot because they agree to consider omission to be quite exceptional (<2-3% of cases). I was expecting a noticeably higher rate, perhaps not at the same level as in the case of the papyri (Mayser grammar gives the omission at ~30%) but higher nonetheless.
Am I the only one surprised? Does anyone have any insight on this issue? Thanks to whoever answers me.