Statistical concepts and classifications

 

 

 

Concepts

 

Statistical concepts are the terms used in statistical operations within geological resources statistics and their definitions.

 

 

Classifications

 

In order to standardize the units of a certain population for statistical purposes, classifications of national, community, and international scope are used:

 

Classification

Acronym

Description

Classificação Portuguesa das Atividades Económicas

CAE

This classification allows statistical units producing goods and services to be grouped together, economic and social statistical information to be organized by branch of activity, and statistics to be compared at the national, community, and world level. 

PRODCOM list

PRODCOM

This list is intended to ensure alignment of production statistics with external trade statistics, as well as comparison with the statistical classification of products by activity. 

Combined Nomenclature

 

NC (Extrative industry list)

NC

This nomenclature of goods of the European Union is intended to meet the requirements of international trade statistics (intra and extra-community) and the Customs Tariff.