Minority figures include both U.S. citizens and students with refugee and permanent-resident visas. The above figures represent the mix of support types for students listing this major as a first major. Students may be paid by a different department. These figures do not represent the proportions of dollars paid in each category. These are the figures reported to NSF for programs in the NSF survey.
Some students receive more than one kind of support.
Fractions are apportioned among support categories as the proportion that the category's support is of the total support for that student. The above figures are the dollars paid last year to students with graduate appointments. Some of this money may have been paid to students in majors outside the department. Median Enrolled years to Ph. D 6.5 4.5 5.5 4.5 Elapsed years to Ph.