What is every Big 12 Conference team's record against the over/under line as a home underdog since the 2008 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 1-0-0 100.0% 0.0% +10.5
Texas A&M 17-7-0 70.8% 29.2% +7.6
Houston 13-7-1 65.0% 35.0% +6.9
Colorado 31-22-2 58.5% 41.5% +2.5
W Virginia 14-10-0 58.3% 41.7% +5.8
Texas Tech 20-15-1 57.1% 42.9% +5.3
TX Christian 9-7-0 56.3% 43.8% +2.5
Oklahoma St 11-9-0 55.0% 45.0% +2.8
Kansas 35-30-0 53.9% 46.2% +0.4
Iowa St 23-23-1 50.0% 50.0% +0.7
Missouri 14-14-0 50.0% 50.0% -2.3
Kansas St 18-18-0 50.0% 50.0% +1.9
Nebraska 12-12-1 50.0% 50.0% -0.6
Baylor 14-16-0 46.7% 53.3% +0.1
Cincinnati 8-10-0 44.4% 55.6% -4.1
UCF 5-8-0 38.5% 61.5% -3.6
BYU 6-13-0 31.6% 68.4% -4.6
Texas 5-12-1 29.4% 70.6% -2.2