In 2006, The Granholm administration launched the Pure Michigan advertising campaign to promote all that Michigan has to offer to potential visitors throughout the country. According to a four-year study of Pure Michigan out-of-state summer advertising from 2006 to 2009, the ads brought five million new out-of-state visitors to Michigan, generated $1.3 billion in spending at Michigan businesses, and resulted in $93 million in Michigan taxes, primarily sales tax.