What is every Southwest Division team's record against the over/under line as an underdog since the 2008-2009 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 271-232-10 53.9% 46.1% +0.8
Memphis 346-350-5 49.7% 50.3% +0.1
Dallas 300-307-7 49.4% 50.6% +0.7
Houston 291-302-6 49.1% 50.9% +1.1
New Orleans 347-390-10 47.1% 52.9% -0.1