The Ann Arbor, MI educational system consists of 42 public schools, 33 private schools and 11 post-secondary schools. Ann Arbor public schools have average test scores of 59% which is 45% higher than than the Michigan average and 20% higher than than the national average. The student to teach ratio of Ann Arbor public schools is 18:1, compared to 22:1 in Michigan and 16:1 across all of the United States. A total of 96.1% of students have completed 8th grade, 95.9% have completed high school, 72.8% have completed a bachelor’s degree and 17.9% have completed a doctorate degree.