Basic information on concepts, definitions and calculation methods of the presented data is provided in the boxes titled "Concepts and definitions" in each section and in
page of this website. Detailed information on the sources and methods used for the production of the UNCTADstat data can be found in the documentation attached to the respective UNCTADstat dataset (
The designations employed and the presentation of material on any map in this work do not imply the expression of any opinion whatsoever on the part of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
Where the designation "economy" appears, it refers to a country, a territory or an area. The assignment of economies to specific groups is done for statistical convenience and does not imply any assumption regarding the political or other affiliation of these economies by the United Nations. Likewise, the designations "developing", "transition" and "developed" are intended for statistical convenience and do not necessarily express a judgement about the stage reached by a particular economy in the development process.
Unless otherwise specified, the values of groups of economies represent the sums of the values of the individual economies included in the group. Calculation of these aggregates may take into account data estimated by the UNCTAD secretariat that are not necessarily reported separately. In cases in which an insufficient number of data points are available within a group of economies, no aggregation is undertaken and the symbol (-) is assigned.
Due to rounding, values do not necessarily add up exactly to their corresponding totals.
United States dollars (US$) are expressed in current United States dollars of the year to which they refer, unless otherwise specified.
Due to space constraints, the names of the following countries may appear in abbreviated form: the Plurinational State of Bolivia, the Democratic People’s Republic of Korea, the Democratic Republic of the Congo, the Islamic Republic of Iran, Lao People’s Democratic Republic, the Federated States of Micronesia, the former Yugoslav Republic of Macedonia, the United Kingdom of Great Britain and Northern Ireland, and the Bolivarian Republic of Venezuela.