What is every Southwest Division team's record against the over/under line as an underdog in the 2018-2019 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 23-14-0 62.2% 37.8% +5.2
New Orleans 25-21-0 54.4% 45.7% +0.3
Memphis 27-28-0 49.1% 50.9% +1.8
Dallas 25-26-1 49.0% 51.0% -0.3
Houston 9-13-0 40.9% 59.1% -0.2