What is every AFC West Division team's record against the over/under line since the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
Las Vegas 97-95-5 50.5% 49.5% +0.7
Kansas City 101-115-2 46.8% 53.2% -0.3
Denver 91-109-3 45.5% 54.5% -0.4
LA Chargers 90-108-2 45.5% 54.6% -0.3