Total domestic intramural expenditure on R&D performed during a given year and reported in current national currency (i.e. expenditure at current prices in national currency).
R&D surveys.
Adapted from OECD (2002), Frascati Manual: Proposed Standard Practice for Surveys on Research and Experimental Development, §423 and UIS Instruction Manual for completing the questionnaire on Research and Experimental Development (R&D) Statistics.