What is every Big 12 Conference team's record against the over/under line as a home underdog since the 2012 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 1-0-0 100.0% 0.0% +10.5
Houston 10-6-1 62.5% 37.5% +7.0
Texas Tech 18-11-1 62.1% 37.9% +7.3
W Virginia 13-10-0 56.5% 43.5% +5.2
TX Christian 9-7-0 56.3% 43.8% +2.5
Kansas 26-25-0 51.0% 49.0% -1.4
Iowa St 16-17-1 48.5% 51.5% -0.9
Oklahoma St 8-9-0 47.1% 52.9% -0.5
Cincinnati 7-8-0 46.7% 53.3% -3.3
BYU 6-9-0 40.0% 60.0% -2.2
Kansas St 9-14-0 39.1% 60.9% -0.9
UCF 3-5-0 37.5% 62.5% +0.9
Baylor 7-13-0 35.0% 65.0% -2.9
Texas 5-10-0 33.3% 66.7% -1.7