Since the new OT rule took place in 1999-2000 (4 vs 4, still 1 pt in a loss):
2276 regular season games
289 draw
Draw%: 12.7%
East vs East: 11.4%
West vs West: 13.6%
Inter-Conference: 13.3%
Also, check out the total lines... usually the lower the total, the higher the chances for a draw (all about standard deviation..)