Well not for sure - but I am reading corresponding articles in both Aviation Week and Combat Aircraft magazines... both publications are consistently reliable ...
I was genuinely surprised at the numbers.... but it's in keeping with previous reports on Iran developing a mature depot level repair capability on the Turkey...
Look up the info for yourselves ...
While they may be reliable for many things, I don't think I rely on them for Iranian Air Force fighter availability numbers. Sounds more like Iranian propaganda to me........