• Data reference period
• Geographic localization (Portugal)

• 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).
• IMPUTED SOCIAL CONTRIBUTIONS:  Imputed social contributions represent the counterpart to unfunded social benefits (less eventual employees' social contributions) paid directly by employers to their employees or former employees and other eligible persons without involving an insurance enterprise or autonomous pension fund, and without creating a special fund or segregated reserve for the purpose.
• ACTUAL SOCIAL CONTRIBUTIONS:  Actual social contributions consist of: a) employers' actual social contributions; b) employees' actual social contributions; c) social contributions by self-employed and non-employed persons.
• GROSS DOMESTIC PRODUCT:  Final result of the production activity of resident producer units and it can be defined in three ways: production approach, expenditure approach and income approach.

(Social contributions/ GDP)*100