Professionals engaged in the conception or creation of new knowledge (who conduct research and improve or develop concepts, theories, models, techniques instrumentation, software or operational methods) broken down by age. The age groups recommended are: under 25 years, 25-34 years, 35-44 years, 45-54 years, 55-64 years, and 65 years and more.
R&D surveys.
Adapted from OECD (2015), Frascati Manual 2015: Guidelines for Collecting and Reporting Data on Research and Experimental Development.