What is every AFC West Division team's record against the over/under line in division games since the 2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Kansas City 40-47-3 46.0% 54.0% -0.2
Denver 39-50-2 43.8% 56.2% -1.2
Las Vegas 39-51-0 43.3% 56.7% -0.4
LA Chargers 38-52-1 42.2% 57.8% -1.0