• Data reference period
• Geographic localization (NUTS - 2013)
• Education level

• EDUCATIONAL INSTITUTION:  Organizational unit that provides one or more education and training offers.
• ENROLLED STUDENT:  See STUDENT
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
• LEVEL OF EDUCATION:  Level of the education and training system which is structured according to the progression, complexity and specialization of learning, corresponding to each of the following stages: primary education, secondary education, post-secondary non-tertiary education and tertiary education.
• NON-TERTIARY EDUCATIONAL INSTITUTION:  Public or private educational institution where basic education and/or secondary education and/or post-secondary non-tertiary education are provided, and sometimes pre-school education.

Number of students / Number of computers connected to the internet