Other colleges such as Caltech, MIT, Harvey Mudd College, Washington and Lee University, University of Rochester, Middlebury College, The College of William and Mary, Fordham University, Swarthmore College, Bates College, Cornell University, the University of Chicago and Boston University are also known for their rigorous grading practices. However, data indicate that even schools known for their traditionally rigorous grading practices have experienced grade inflation and these claims may now be overstated. Washington and Lee had an average GPA of 3.27 in 2006 and Swarthmore's graduates had a mean GPA of 3.24 in 1997. At some schools there are concerns about different grading practices in different departments; engineering and science departments at schools such as Northwestern University are reputed to have more rigorous standards than departments in other disciplines. To clarify the grades on its graduates' transcripts, Reed College includes a card, the current edition of which reports that "The average GPA for all students in 2013–14 was 3.15 on a 4.00 scale. This figure has increased by less than 0.2 of a grade point in the past 30 years. During that period, only eleven students have graduated from Reed with perfect 4.00 grade averages." Wellesley College implemented a maximum per-class grade cap of 3.33 in 2004, though professors could award a higher average grade by filing a written explanation. Grades lowered to comply with the cap, and student evaluations of professors also lowered. The number of students majoring in economics increased and other social sciences decreased though this may have been part of larger general trends at the time.