What is every AFC West Division team's record against the over/under line as a road underdog in the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
LA Chargers 5-1-0 83.3% 16.7% +5.8
Denver 1-1-0 50.0% 50.0% -0.5
Las Vegas 3-4-0 42.9% 57.1% -1.2
Kansas City 3-4-1 42.9% 57.1% -2.8