Presumably so that you can tell me what a lazy, overpaid, and underqualifed person I am.
That varies enormously. Over the past 4 weeks, I've worked for 18 days. Over the next 8 weeks, I'm not going to work at all.
In the last 56 day bid period, I took two days leave, and otherwise worked on 30 days. Bear in mind though, that not all work means flying.
Every time that I set foot in the aircraft, I get an average of 11 hours flying time. Straight away that generates a limit of 9 flights per 30 day period. If I flew domestically, and so flew much shorter sectors, I'd go to work more often to hit the hours limits.
Bear in mind too, that the pay is based upon the flight hours. So, it's quite possible to spend 11 hours at work, and to be paid for a small fraction of them. Long haul is more popular because the density is higher...i.e. there are less hours that I'm not paid for with a long haul flight than short haul.