Ta for the numbers Genghis & LondonJ - but summat don't add-up like !!!
Taking your numbers Genghis, of 2.9 pilots per 1000, that makes about 162k pilots total, (and the 21 per plane then makes sense), but your original number is about 18k pilots. LondonJ's number from the PDF report is about 44k.
Planes: 140 per 1k pop works out to less than 8k planes, but you reckon there are about 16k.....
Hmmmm......wonder which numbers are right
A