The Center for Measuring University Performance places Penn in the first tier of the United States' top research universities (tied with Columbia, MIT and Stanford), based on research expenditures, faculty awards, PhD granted and other academic criteria. Penn was also ranked 18th of all U.S. colleges and universities in terms of R&D expenditures in fiscal year 2013 by the National Science Foundation. The High Impact Universities research performance index ranks Penn 8th in the world, whereas the 2010 Performance Ranking of Scientific Papers for World Universities (published by the Higher Education Evaluation and Accreditation Council of Taiwan) ranks Penn 11th in the world for 2007, 2008 and 2010 and 9th for 2009.