Since the class of 2000, it has taken students on average 5.3 years to complete their doctoral degree (Median = 5 years). Since 2000, the percentage of students completing their doctoral degrees in 4 years is 15.2%, 5 years is 53.5%, 6 years is 23.2%, and 7 years is 8.2%. Note that this data is based on graduation through August 2008.