What is every Southwest Division team's record against the over/under line as an underdog since the 2007-2008 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 278-248-11 52.9% 47.2% +0.4
Dallas 313-314-7 49.9% 50.1% +0.8
Memphis 376-385-5 49.4% 50.6% 0.0
Houston 303-314-6 49.1% 50.9% +1.2
New Orleans 359-408-10 46.8% 53.2% -0.1