• Type of survey: annual structural surveys; different economic activities are investigated alternately
  • Population scope: the population under study depends on the sectors studied each year
  • Geographical scope: the entire national territory
  • Reference period of the results: calendar year prior to the data collection
  • Reference period of the information: the calendar year
  • Sample size: an average of 7,000 units per year
  • Type of sampling: Stratified sampling
  • Collection method: Questionnaire completed by the respondent using one of the following ways: internet (IRIA system), email, fax, telephone or postal.

Methodology documents, questionnaires, classifications...