According to the Oklahoma City Chamber of Commerce, the metropolitan area's economic output grew by 33 percent between 2001 and 2005 due chiefly to economic diversification. Its gross metropolitan product was $43.1 billion in 2005 and grew to $61.1 billion in 2009.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was Oklahoma cities gross metropolitan product in 2009?
$61.1 billion