- Survey Type: ongoing monthly
- Base year: 2015
- Population scope: the business turnover Index provides a comprehensive and weighted measure of the business turnover for the economic sectors Extractive and manufacturing industries, the Supplying of electricity and water, Treatment and management of waste, Trade and Non-financial market Services.
- Geographical scope: entire country
- Results reference period: calendar month
- Information sources: it is compiled from information from three other statistical operations carried out by the INE: Industry turnover indices (ITI), service sector activity indicators (SSAI) and retail trade indices (RTI). In addition existing information from administrative records is utilised: sales declared by large companies in their VAT returns in the sector not covered by the surveys mentioned previously.
Methodology documents, questionnaires, classifications...