Read this: The Oklahoma City Thunder has been regarded by sports analysts as one of the elite franchises of the NBA's Western Conference and that of a media darling as the future of the league. Oklahoma City has earned Northwest Division titles every year since 2009 and has consistently improved its win record to 59-wins in 2014. The Thunder is led by first year head coach Billy Donovan and is anchored by several NBA superstars, including perennial All-Star point guard Russell Westbrook, 2014 MVP and four-time NBA scoring champion Kevin Durant, and Defensive Player of the Year nominee and shot-blocker Serge Ibaka.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): When did the Thunder start winning Northwest Division Titles?
2009