What is every Southwest Division team's record against the over/under line as an underdog since the 2003-2004 season?

Definitions
Team Over Record Over % Under % Total +/-
San Antonio 303-269-11 53.0% 47.0% +0.5
Dallas 344-345-8 49.9% 50.1% +0.7
Memphis 464-469-6 49.7% 50.3% 0.0
Houston 369-394-8 48.4% 51.6% +1.1
New Orleans 463-516-14 47.3% 52.7% -0.1