Data Source and Calculation
State R&D intensity measures R&D funded or conducted by federal and state agencies, businesses, higher education institutions, and non-profit organizations as a percentage of state gross domestic product (GDP). Data from the National Science Foundation, Science and Engineering Indicators 2014 State Data Tool, Table 40: http://www.nsf.gov/statistics/2016/nsb20161/#/singleind/39/T. Data are in current dollars. Available every two years in January.