- Type of survey: monthly continuous survey
- Base period: 2025
- Weight reference period: previous year
- Sample of municipalities: 177
- Number of items: 487 of traditional collection and 263 of scanner data
- Number of observations: approximately 200,000 prices of traditional collection
- Classification: 13 groups, 45 subgroups, 108 classes and 196 subclasses; 55 headings and 32 special aggregates
- General calculation method: Laspeyres chain index
- Collection method: personal visits to outlets, e-mail, telephone and internet and scanner data
- Standardised Methodological Report
- File in the Inventory of Statistical Operations: 30180
Last date of update of the methodology
31/01/2026