What is every AFC West Division team's record against the over/under line as a favorite since the 2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Denver 66-64-3 50.8% 49.2% +0.5
Las Vegas 35-35-3 50.0% 50.0% +1.2
LA Chargers 63-75-3 45.7% 54.4% +0.2
Kansas City 78-98-0 44.3% 55.7% -0.9