Data Sources

Gross domestic product
U.S. Department of Commerce, Bureau of Economic Analysis. The original source of gross domestic product data for Puerto Rico is the Puerto Rico Planning Board, Program of Economic and Social Planning, Subprogram of Economic Analysis. For all other gross domestic product data, see http://www.bea.gov/iTable/index_regional.cfm.

Total R&D performance
National Center for Science and Engineering Statistics, National Science Foundation. National Patterns of R&D Resources.

Business R&D performance
National Center for Science and Engineering Statistics, National Science Foundation. Business and Industrial Research and Development.

Higher education R&D performance
National Center for Science and Engineering Statistics, National Science Foundation. Higher Education Research and Development.

Academic research space
National Center for Science and Engineering Statistics, National Science Foundation. Facilities for S&E Research.

Federal R&D obligations
National Center for Science and Engineering Statistics, National Science Foundation. Federal Funds for Research and Development.

State government R&D expenditures
National Center for Science and Engineering Statistics, National Science Foundation. State Government Research and Development.

SBIR awards
U.S. Small Business Administration, Office of Technology, Small Business Innovation Research Program. See http://web.sba.gov/pro-net/search/dsp_dsbs.cfm .

Utility patents issued to state residents
U.S. Department of Commerce, U.S. Patent and Trademark Office. Patent by Country, State, and Year: Utility Patents. See http://www.uspto.gov/.

Population
U.S. Department of Commerce, Bureau of the Census, Population Division. See Population Change: Estimates of Resident Population Change for the United States, Regions, States, and Puerto Rico and Region and State Rankings at https://www.census.gov/programs-surveys/popest.html.

Civilian labor force
U.S. Department of Labor, Bureau of Labor Statistics. Employment status of the civilian noninstitutional population 16 years of age and over by region, division, and state, annual averages. See http://stats.bls.gov/news.release/srgune.toc.htm.

Personal income per capita
U.S. Department of Commerce, Economics and Statistics Administration, Bureau of Economic Analysis, Regional Economic Accounts. Data for state per capita personal income. The original source of personal income per capita data for Puerto Rico is the Puerto Rico Planning Board, Program of Economic and Social Planning, Subprogram of Economic Analysis. For all other personal income per capita data see http://www.bea.gov/iTable/index_regional.cfm.

SEH graduate students in institutions granting research-based graduate degrees
National Center for Science and Engineering Statistics, National Science Foundation. Graduate Students and Postdoctorates in Science and Engineering.

SEH doctorate recipients
National Center for Science and Engineering Statistics, National Science Foundation. Doctorate Recipients from U.S. Universities.

SEH postdoctoral appointees in institutions granting research-based graduate degrees
National Center for Science and Engineering Statistics, National Science Foundation. Graduate Students and Postdoctorates in Science and Engineering.

Employed SEH doctorate holders
National Center for Science and Engineering Statistics, National Science Foundation. Characteristics of Scientists and Engineers with U.S. Doctorates..