Survey on Human Resources in Science and Technology Employment situation of the doctorate-holders Percentage of employed doctorate-holders, by field of the doctoral studies and employment sector. Units: percentage of the total employed doctorate-holders at 31/12/09 ;Total;Business;Public Administrations;Higher Education;Private Non-Profit Institutions; Total;100.00;15.14;38.36;42.68;3.82; Natural Sciences;33.49;5.62;11.11;15.08;1.67; Engineering and Technology;8.10;1.60;1.30;4.85;0.34; Medical Sciences;21.16;4.55;13.80;2.32;0.50; Agricultural Sciences;2.96;0.39;1.33;1.12;0.12; Social Sciences;20.15;1.90;5.46;12.17;0.63; Humanities;14.13;1.06;5.38;7.15;0.55; Notes: Source: National Statistics Institute