A strong December helped push Nevada casinos to a $10.86 billion win in 2012.That $10.86 billion is 1.5 percent more than 2011’s total win and the second consecutive increase. But it’s still more than 15 percent below the industry’s peak of $12.8 billion in 2007.December 2012 saw a 10.24 percent increase statewide driven by a 13.5 percent increase on the Strip.The “win” is what was left in casino coffers after bettors wagered on table games, sports betting and slot machines. Western Nevada markets, however, didn’t share in the 2012 recovery. Reno was down 3 percent from the previous year, Washoe …