What is every AFC West Division team's record against the over/under line coming off a win in the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
LA Chargers 4-2-0 66.7% 33.3% -0.3
Denver 8-4-1 66.7% 33.3% +1.7
Las Vegas 2-2-0 50.0% 50.0% -0.1
Kansas City 1-1-0 50.0% 50.0% +6.0