Statistics on R&D Activities in the Business Sector 2021 Serie. Results based on Statistical Enterprises Personnel employed in intramural R&D, in head count and in FTE, by years and type of indicator Unidades: specified in the variables ,Personnel Total: Number of persons,Personnel Total: Persons in FTE,Personnel Total: Persons in FTE (annual growth rate),Personnel Total: Persons in FTE (per thousand with respect to the employed population),Researchers: Number of persons,Researchers: Researchers in FTE,Researchers: Researchers in FTE (annual growth rate),Researchers: Researchers in FTE (per thousand with respect to the employed population), 2021,398.661,249.473,9,1,08,12,6,255.385,154.125,3,1,06,7,8, Notas: FTE: Full-time equivalent '...'= data not available '.'= numeric data equal to zero not resulting from rounding Fuente: National Statistics Institute