What is every Big 12 Conference team's record against the over/under line as an underdog since the 2004-2005 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa State 136-86-3 61.3% 38.7% +4.2
Baylor 111-78-5 58.7% 41.3% +3.2
Missouri 116-97-2 54.5% 45.5% +2.0
Texas 91-83-2 52.3% 47.7% +2.2
Kansas St 102-100-2 50.5% 49.5% +1.2
W Virginia 79-82-2 49.1% 50.9% -0.1
Nebraska 129-134-5 49.0% 50.9% +0.5
TX Christian 141-148-3 48.8% 51.2% +1.0
Oklahoma St 102-109-2 48.3% 51.7% -0.8
Texas Tech 120-130-4 48.0% 52.0% -0.8
Colorado 113-132-0 46.1% 53.9% +0.2
Texas A&M 86-110-1 43.9% 56.1% -1.0
Oklahoma 81-106-3 43.3% 56.7% -1.9
Kansas 23-36-1 39.0% 61.0% -2.7