What is every Southwest Division team's record against the over/under line as an underdog since the 2014-2015 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 203-175-7 53.7% 46.3% +0.8
Memphis 221-220-4 50.1% 49.9% +0.8
New Orleans 214-227-6 48.5% 51.5% +0.1
Houston 187-202-4 48.1% 51.9% +0.2
Dallas 191-221-4 46.4% 53.6% +0.1