Freight/mail transport by air
Freight/mail public transport by air for remuneration or for hire.
The volume of cargo transportation is determined as the sum of the gross weight of freight and post. Only the cargo (freight, mail) transported within commercial scheduled (regular) or non-scheduled (irregular) air services is taken into account. Cargo carried by commercial or non-commercial general aviation (e.g. activities of aeroclubs, agro-aviation, private flights) is not taken into account.