What is every Big 12 Conference team's record against the over/under line as an underdog since the 2014 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 5-2-0 71.4% 28.6% +12.4
Texas Tech 30-19-1 61.2% 38.8% +4.4
TX Christian 14-10-0 58.3% 41.7% +4.5
Kansas 34-34-1 50.0% 50.0% +0.4
Iowa State 21-27-1 43.8% 56.2% -1.8
Kansas St 22-29-1 43.1% 56.9% +0.3
W Virginia 12-17-2 41.4% 58.6% -1.0
Oklahoma St 12-18-0 40.0% 60.0% -2.2
Baylor 11-20-0 35.5% 64.5% -1.4
Texas 13-26-0 33.3% 66.7% -3.3