This chapter is concerned with statistical data on external trade. Imports and exports statistics cover only cargoes exported to and imported from foreign countries; fish sales and bunker oil receipts at local ports have also been included in exports since 1970. Values of exports  are priced on a free-on-board (F.O.B.) basis, and values of imports are priced on a cost-insurance-freight (C.I.F.) basis. Exported goods are classified according to the country of destination which was declared by the exporter. If there are more than one destination, the final destination shall be applied. Imported goods are classified according to the country of origin. Trade indices, compiled from a sample of 1,872 export items and 1,968 import items, can be classified into five categories and their formulas as follows:

Statistics by Categories -External Trade-Outline