• Type of survey: continuous and monthly.
  • Base Year: 2021.
  • Reference period of the weightings: The year prior to the current one.
  • Population scope: industrial establishments.
  • Sample size: approximately 4,800 industrial establishments and 1,700 items for the IPRIX; approximately 5,200 establishments and 2,100 products for the IPRIM.
  • Number of observations: approximately 15,000 prices each month en el IPRIX and 19.000 en el IPRIM.
  • Data collection: monthly, prices in force the 15th of each month.
  • General calculation method: Linked Laspeyres.
  • Collection method: nternet (IRIA system), e-mail, fax, telephone and postal mail.

Methodology documents, questionnaires, classifications...