What is every Big 12 Conference team's record against the over/under line as a home underdog since the 2009 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 1-0-0 100.0% 0.0% +10.5
Texas A&M 13-7-0 65.0% 35.0% +5.8
Houston 12-7-1 63.2% 36.8% +6.3
Colorado 31-20-1 60.8% 39.2% +3.4
W Virginia 14-10-0 58.3% 41.7% +5.8
TX Christian 9-7-0 56.3% 43.8% +2.5
Texas Tech 19-15-1 55.9% 44.1% +5.4
Kansas 34-29-0 54.0% 46.0% +0.5
Oklahoma St 10-9-0 52.6% 47.4% +1.4
Missouri 14-14-0 50.0% 50.0% -2.3
Iowa St 21-22-1 48.8% 51.2% +0.4
Nebraska 11-12-1 47.8% 52.2% -0.7
Cincinnati 8-9-0 47.1% 52.9% -3.4
Kansas St 15-18-0 45.5% 54.6% +0.2
Baylor 12-15-0 44.4% 55.6% 0.0
UCF 4-6-0 40.0% 60.0% -0.4
BYU 6-13-0 31.6% 68.4% -4.6
Texas 5-12-1 29.4% 70.6% -2.2