Today, the university is considered one of the original eight Public Ivies. In the most recent edition of World University Rankings, the university was ranked 18th among universities worldwide.In 1995, the National Research Council ranked Michigan third nationally for the quality of its graduate programs. Having one of the world's largest number of living alumni at 460,000 in 2007,the university is alma mater to the late U.S. President Gerald Ford. UM owns the University of Michigan Health System and has one of the largest research expenditures of any American university.