• Data reference period (Month)
• Geographic localization (Portugal)
• Type of international trade

• ENTERPRISE:  Legal entity (natural or legal person) that is an organisational unit producing goods or services, which benefits from a certain degree of autonomy in decision-making, especially for the allocation of its current resources. An enterprise carries out one or more activities at one or more locations.
• 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).
• IMPORT:  Physical movement of goods/merchandise out of the statistical territory a Member State to the statistical territory of another Member State or a third country.
• INTERNATIONAL TRADE:  All intra-EU and extra-EU trade, i.e., all imports and exports of goods.
• EXPORT:  Physical movement of incoming goods/merchandise from the statistical territory of a Member State to the statistical territory of another Member State or a third country.

(Statistical value of exports/ Statistical value of imports)*100