What is every AFC South Division team's record against the over/under line as an underdog in the 2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Indianapolis 6-2-0 75.0% 25.0% +4.8
Jacksonville 7-4-0 63.6% 36.4% +8.1
Houston 6-5-0 54.6% 45.5% 0.0
Tennessee 6-5-1 54.6% 45.5% 0.0