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

Definitions
Team Over Record Over % Under % Total +/-
LA Chargers 54-46-2 54.0% 46.0% +2.5
Denver 47-45-1 51.1% 48.9% +0.8
Las Vegas 64-75-4 46.0% 54.0% -0.2
Kansas City 42-50-3 45.7% 54.4% +0.2