 In September 2016, it gave it its highest possible rating, four out of four stars, after its customary review of the Foundation's financial records and tax statements.A different charity monitor, CharityWatch, said that 88% of the foundation's money goes toward its charitable mission and gave the foundation an A rating for 2016.In 2015, based on revenue of $223 million and an expense ratio of 12% the foundation spent in excess of $26 million to complete its mission.