Even in those terms, Arab countries weren't all that far behind, as the British and the French had a mandate in their lands.
I didn't really get you here
Completely possible.
I believe the real number was inflated, in order to show that it wasn't a one-time engagement or a fluke.
Maybe. I have to say, in 1967, Israeli pilots were first instructed to not engage in aerial combat, but to bomb the enemy airfields and jets on the ground at all costs, and most of the Israeli pilots listened to this instruction. In some sort, they were Kamikaze pilots willing to get shot down in order to destroy their target, and in the bigger picture this is what led to the decisive victory.
Also, I have to say, 1967 war was both the most successful Israeli war, yet at the same time the worst in terms of air to air battles, with 12 jets shot down in air battles, and "only" 60 Arab jets shot down in return. Accounting for almost half (12/25) of the jets shot down in air to air engagements in Israeli history.