Survey on Human Resources in Science and Technology 
National results
Percentage of practising doctors who carried out research  activities at 31/12/2006, by doctoral area and employment sector.
Units: percentage

;Total;Companies;Public Administrations;Higher education;PNPI;
Total;100.00;8.16;29.31;58.34;4.19;
Natural sciences;31.30;2.72;8.49;18.48;1.61;
Engineering and technology;10.34;0.82;1.49;7.55;0.48;
Medical sciences;16.67;2.46;9.95;3.20;1.06;
Agricultural sciences;3.66;0.27;1.30;1.95;0.14;
Social sciences;23.68;1.10;4.14;17.89;0.55;
Humanities;14.35;0.79;3.94;9.27;0.35;
Notes:
Source: National Statistics Institute