• Data reference period
• Geographic localization (NUTS - 2002)

• EDUCATIONAL INSTITUTION:  Organizational unit that provides one or more education and training offers.
• TERTIARY EDUCATION:  Level of education that succeeds to upper secondary education, characterized by high complexity and specialized learning, oriented to the transition into the labor market.
• DOCTORATE 3rd CYCLE:  Study cycle of tertiary education leading to the academic degree of doctor, ministered in university education, with 180 to 240 credits and normal duration between six and eight semesters, which entails the elaboration of a thesis of scientific nature within a branch of knowledge or specialty, and may also include the accomplishment of the Doctoral Course 3rd Cycle.
• DOCTORATE:  Process leading to the academic degree of doctor in tertiary education, which entails the elaboration of a dissertation thesis of scientific nature within a branch of knowledge or specialty.
• REFERENCE PERIOD:  The length of time for which data are collected, e.g. a specific day, month or year.

(Doctorates of higher education/ Resident population aged between 25 and 34 years old)*1000