What is every Big 12 Conference team's record against the over/under line in post-season bowl games since the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Kansas 2-0-0 100.0% 0.0% +28.8
Oklahoma 5-1-0 83.3% 16.7% +7.0
TX Christian 2-1-0 66.7% 33.3% +9.7
BYU 3-2-0 60.0% 40.0% +0.3
Kansas St 2-2-0 50.0% 50.0% +1.1
Baylor 2-2-0 50.0% 50.0% -1.8
Texas 2-3-0 40.0% 60.0% -4.3
Oklahoma St 2-4-0 33.3% 66.7% +3.1
UCF 2-4-0 33.3% 66.7% -4.7
W Virginia 1-3-0 25.0% 75.0% -13.6
Houston 1-3-0 25.0% 75.0% -7.0
Iowa St 1-4-0 20.0% 80.0% -6.0
Cincinnati 1-4-0 20.0% 80.0% -6.4
Texas Tech 0-3-0 0.0% 100.0% -9.7