What is every AFC West Division team's record against the over/under line as an underdog since the 2007 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 86-77-4 52.8% 47.2% +1.5
LA Chargers 48-46-2 51.1% 48.9% +0.5
Denver 52-50-3 51.0% 49.0% +1.5
Kansas City 51-53-4 49.0% 51.0% +0.8