What is every AFC West Division team's record against the over/under line as an underdog since the 2006 season?

Definitions
Team Over Record Over % Under % Total +/-
LA Chargers 57-56-2 50.4% 49.6% +1.2
Las Vegas 103-103-5 50.0% 50.0% +0.8
Kansas City 58-61-5 48.7% 51.3% +0.4
Denver 61-70-2 46.6% 53.4% +0.6