What is every AFC West Division team's record against the over/under line in conference games since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 121-125-8 49.2% 50.8% +0.7
Denver 126-134-4 48.5% 51.5% -0.3
LA Chargers 124-136-5 47.7% 52.3% +0.5
Kansas City 125-146-3 46.1% 53.9% -0.1