The life cycle of an active flying career in PAF spans around 18 years, i.e. it begins from a year before graduation up to one completes tenure of squadron commander. After commanding the squadron, flying goes in the background and staff appointments/desk jobs take the lead until one retires from the service.
So in 18 years of active flying career, a fighter pilot flies an average of 15 to 20 hours each month. If you take out weekends/holidays, bad weather and maintenance days from a month, the average number of days available for flying in a month are also 20. So a pilot flies almost an hour a day in a month. I would say that its a very healthy dose of flying. This translates into a yearly average flying of almost 220 hours. Like many airforces in the world, PAF pilots get a very good amount of flying despite that we have older aircrafts.
Transport pilots get much more flying than fighter guys. Lets say that a C-130 pilot on a return Islamabad-Karachi trip will log 5 hours in a day. Whereas an F-7 pilot whose average sortie time is 45minutes will need to fly around 6 mission to make 5 hours of flying.
Similarly the pilots who do an instructional tour at Academy can fly as much as they actually can. People have been logging 80 to 90 hours of flying in a month ...its crazy flying there...
As for the overall PAF flying / year...well I would say that its well over 70,000 hours...rest is anyones guess..cant give you exact figure because i dont know myself..