What is every AFC West Division team's record against the over/under line as an underdog since the 2011 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 72-69-2 51.1% 48.9% +0.8
Kansas City 33-33-2 50.0% 50.0% +0.7
LA Chargers 48-48-0 50.0% 50.0% +0.3
Denver 41-52-0 44.1% 55.9% -0.1