In broad terms, inward flows to one Member State from another are known as arrivals.
Arrivals in a given Member State include:
a) goods in free circulation which enter the statistical territory of the Member State;
b) goods which have been placed under the customs procedure for inward processing or processing under customs control (for processing, transformation or repair) in another Member State and which enter the statistical territory of the Member State in question;
c) Some movements of goods are included in Eurostat statistics according to specific rules. In particular, ships and aircraft are included in arrivals of a given Member State when ownership is being transferred from a person resident in another Member State to a person resident in the Member State in question.
Eurostat, "Statistics on the trading of goods - User guide", Office for Official Publications of the European Communities, Luxembourg, 1998, pp.13