What is every Southwest Division team's record against the over/under line as an underdog since the 2015-2016 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 199-168-7 54.2% 45.8% +1.0
Memphis 214-206-3 51.0% 49.1% +0.9
Houston 174-186-4 48.3% 51.7% +0.3
New Orleans 193-213-5 47.5% 52.5% -0.3
Dallas 175-211-4 45.3% 54.7% -0.5