Than any other club, lol, because of the stage we usually go out of in europe we usually play less than other top four clubs. WE also have a wage bill that for most of the past decade has been mostly between 70-130% higher than those teams who don't play extra european games.
Likewise that table is meaningless, that states number of injury, it doesn't take into account severity of injury.
Cazorla, Welbeck, Coquelin, Ox(twice) have sustained knee ligament trouble this season alone, all missing(or going to miss) a huge number of games.
That list counts a tight calf or a broken nose that causes you to miss a single game with the same weight as a ACL tear that causes you to miss the full season. No Arsenal have not had an okay season for injuries, they've had another very bad year. We've had 8 players miss over 50 days of the season, 4 that missed over 100, 2 over 210 days and Welbeck will join that list. That list doesn't even include Welbeck's preseason injury that made him miss almost the entirety of this year already. Anyone injured last year isn't included in either that list you posted or those stats I was using.
This is a 'less' bad year for us, and that has multiple players missing 3/4's of a season, many more missing 2-3 months and many of those have had other injuries keeping them out for 1-4 weeks at other points of the season.
A lucky or 'good' season is where you have 20-30 injuries and the majority of those are less than 3 weeks out with only a couple of players missing a substantial portion of the season.
http://www.bbc.co.uk/sport/football/35313650
Does this table suffice?
I'm not sure about previous years, but this year would suggest we've ok.
There are certain players in the Arsenal squad that are injury prone though, that will contribute badly i'd of thought to overall stats. It's funny how you use stats then when someone else does, their useless. You've got to remember that Arsenal play in certain way that will contribute to more injuries as well. We have smaller, agile players as opposed to large and strong guys. Teams also try to tackle heavily becuase they can't get the ball off Arsenal, that will also contribute.