Depending on what parts of economic territory are included in the statistical territory, the trade data compilation system adopted by a country may be referred to as general or special. The statistical territory of the former coincides with the economic territory, while of the later comprises only a particular part of the economic territory. General trade system is adopted since 2016. Since then goods stored and re-exported subsequently in customs bonded warehouses, logistics centers, and non-manufacturing enterprises in free trade zones are included in the trade statistics. Please refer to this website/Trade Statistics/Guide for methodology.