What is every Big 12 Conference team's record against the over/under line as a road underdog since the 2004 season?

Definitions
Team Over Record Over % Under % Total +/-
Nebraska 22-13-0 62.9% 37.1% +7.5
Oklahoma 8-5-1 61.5% 38.5% +3.3
Kansas St 31-21-1 59.6% 40.4% +3.5
TX Christian 16-14-0 53.3% 46.7% +1.9
Baylor 24-22-1 52.2% 47.8% +3.6
W Virginia 14-13-0 51.8% 48.1% +0.4
Missouri 18-17-0 51.4% 48.6% +0.5
Texas A&M 21-21-0 50.0% 50.0% -1.6
Texas Tech 21-22-0 48.8% 51.2% +0.1
Kansas 33-38-0 46.5% 53.5% +0.4
Oklahoma St 16-20-0 44.4% 55.6% +0.1
Iowa State 30-38-0 44.1% 55.9% -1.8
Colorado 32-41-0 43.8% 56.2% -2.0
Texas 5-15-0 25.0% 75.0% -11.2