b Includes Mexican American, Puerto Rican, and other Hispanic.
c Native Hawaiian, other Pacific Islanders, and multiple race/ethnicity are included in this category from 2001 forward.
Note: Categories are grouped differently from questionnaire and summary reports in that linguistics, history of science, American studies, and archaeology are included in social sciences and not in humanities, and public administration is included in social sciences.
Source: National Science Foundation/Division of Science Resources Statistics, Survey of Earned Doctorates. Adapted from NSF (2006d): Table 3.