The Gunners will end the year on top of the Premier League and have accumulated more points over the past 12 months than any other team in the top flight.
"I just think [it's down] to consistency - it's as simple as that," he told Arsenal Player. "Even if the team's not playing to the best of their ability on the day, still being able to grind out a win or having the team spirit and character to come back from being a goal down or whatever is massively important.
"I think this year the consistency of our performances and the way sometimes we have to dig in and fight through games has just been better and I think that's why we are where we are at the moment."
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