What is every Big 12 Conference team's record against the over/under line in NCAA tournament games in the 2018-2019 season?

Definitions
Team Over Record Over % Under % Total +/-
Kansas St 1-0-0 100.0% 0.0% +15.5
Baylor 2-0-0 100.0% 0.0% +12.0
Kansas 1-1-0 50.0% 50.0% +7.3
Oklahoma 1-1-0 50.0% 50.0% +6.0
Texas Tech 2-4-0 33.3% 66.7% -2.1
Iowa St 0-1-0 0.0% 100.0% -19.0