What is every Big 12 Conference team's record against the over/under line as a home underdog since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 1-0-0 100.0% 0.0% +10.5
Oklahoma St 20-11-0 64.5% 35.5% +5.7
Texas A&M 20-13-0 60.6% 39.4% +4.5
Texas Tech 24-16-1 60.0% 40.0% +5.3
Houston 16-11-1 59.3% 40.7% +7.5
W Virginia 16-12-0 57.1% 42.9% +5.4
Missouri 17-14-0 54.8% 45.2% -0.5
Colorado 35-30-2 53.9% 46.2% +0.6
Nebraska 15-14-1 51.7% 48.3% +1.2
Kansas 38-36-1 51.4% 48.7% -0.7
Kansas St 21-22-0 48.8% 51.2% +1.3
Iowa St 28-30-2 48.3% 51.7% +0.1
Cincinnati 13-14-0 48.2% 51.9% -2.2
TX Christian 9-10-0 47.4% 52.6% +0.1
Baylor 23-27-0 46.0% 54.0% -1.8
UCF 11-13-0 45.8% 54.2% -2.3
Texas 5-12-1 29.4% 70.6% -2.2
BYU 7-17-0 29.2% 70.8% -7.3