Statistics on R&D Activities in the Business Sector Higher Education Sector Number of organizations that carry out intramural R&D by type of centre Unidades: specified in the variables ,Public universities,Private universities,Other centres of higher education,Total, Number of units that carry out intramural R&D,49,35,89,173, Notas: '...' data not available '.'=numeric data equal to zero not resulting from rounding Fuente: National Statistics Institute