Wasn’t Aeroflot a female pilot pioneer in the sixties? I seem to remember reading somewhere that while female pilots as a whole were a rarity at the time, they were common in the Soviet Union.

As for present figures, I suspect that there are quite a few more female pilots than some people imagine. I read about one female captain in a BA flight magazine once, so there’s one and wasn’t the first BA B747-400 to land at Terminal 5 captained by a woman? There’s two, assuming they aren’t the same captain.