Table 28 Figures on total export and import values are reported in national currency and in US dollars. The valuation is respectively f.o.b. The conversion rates used by the Secretariat in computation of the US dollar values are those published in the United Nations Yearbook of International Trade Statistics or in materials made available by the United Nations Statistical Division. These are official index numbers of the countries calculated in terms of national currencies. For some countries ECA estimates are utilized.
Terms of trade is expressed as the ratio of the unit value index of exports to that of imports.
The data on direction of trade shown in this table are grouped by selected regions and countries. The value and quantity of the principal imported and exported commodities are indicated in these two tables. This table contains index numbers of consumer and wholesale prices. The data for these indexes are based on information available in national publications, the ILO Yearbook of Labour Statistics, and the UN Monthly Bulletin of Statistics. The wholesale price index numbers measure changes in commodity prices at the wholesale stage of distribution.