What is every AFC West Division team's record against the over/under line as a favorite since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 46-44-4 51.1% 48.9% +1.4
Denver 98-99-4 49.8% 50.3% +0.3
LA Chargers 92-103-5 47.2% 52.8% +0.7
Kansas City 103-122-0 45.8% 54.2% -0.3