What is every AFC West Division team's record against the over/under line since the 2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 130-124-7 51.2% 48.8% +1.1
Denver 127-138-4 47.9% 52.1% +0.5
LA Chargers 125-137-5 47.7% 52.3% +0.5
Kansas City 129-150-4 46.2% 53.8% -0.1