Education in the US State of Minnesota comes from a number of public and private sources and encompasses pre-Kindergarten to post-secondary levels. Minnesota has a literate and well-educated population; the state ranked 13th on the 2006–07 Morgan Quitno Smartest State Award, and is first in the percentage of residents with at least a high school diploma. But while more than 90% of high school seniors graduated in 2006, about 6% of white, 28% of African American, 30% of Asian American and more than 34% of Hispanic and Native American students dropped out of school. In 2007 Minnesota students earned the highest average score in the nation on the ACT exam. While Minnesota has chosen not to implement school vouchers, it is home to the first charter school, the City Academy High School of Saint