What is every Big 12 Conference team's record against the over/under line as an underdog since the 2003-2004 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa St 167-127-4 56.8% 43.2% +2.9
Baylor 123-95-5 56.4% 43.6% +2.8
BYU 87-77-2 53.1% 47.0% +2.4
Texas 114-101-1 53.0% 47.0% +2.2
Missouri 153-136-3 52.9% 47.1% +1.4
W Virginia 123-110-3 52.8% 47.2% +1.4
Houston 97-92-4 51.3% 48.7% +1.4
Nebraska 178-170-4 51.2% 48.9% +1.1
Kansas St 137-131-5 51.1% 48.9% +1.8
Oklahoma St 138-136-3 50.4% 49.6% -0.3
Texas Tech 146-149-5 49.5% 50.5% 0.0
UCF 124-127-5 49.4% 50.6% 0.0
TX Christian 169-177-7 48.8% 51.2% +1.2
Texas A&M 121-128-2 48.6% 51.4% 0.0
Oklahoma 119-136-5 46.7% 53.3% -1.0
Cincinnati 88-105-3 45.6% 54.4% -1.8
Colorado 131-157-0 45.5% 54.5% -0.2
Kansas 36-49-1 42.4% 57.7% -2.4