Data are derived from a survey. Digital data collection is preferred, using retail chains and management software, to reduce the survey burden on accommodation providers.

Data on the number of accommodation establishments comes from various sources (administrative records, exchanges with accommodation providers during the survey, and online research).

The collection is done at the beginning of month M + 1 for the data of month M.

Local unit (of an enterprise)

Samping method was changed in 2023 for hotels, in connection with the drop in sample size. The sample was repeated for campsites and Other Short-Stay Accomodations (HOSSA).

The sampling frame is the index of tourism hotels, index managed by Insee.

For hotels, the stratification criteria are

• a geographical axis : region*tourist area (Ile-de-France, coastlines, ski mountain area, provincial urban area, other metropolitan area, overseas department)
• the category (1 to 5 stars or unclassified),
• as well as the size of hotels in number of rooms, for the largest strata.

For campsites, the stratification criteria are also :

• a geographical axis : region* tourist area (coastlines, other)
• the grouped category (upscale /downscale)
• and the size in number of pitches.
  The draw is exhaustive in a few small regions (less than 150 campsites).

For Holiday and Other Short-Stay Accomodations (HOSSA), the stratification criteria are also :

• a geographical axis : region*tourist area (Paris and surroundings/coastline/ski mountain area/proincial urban area/other)
• the type of accommodation (tourist residence/holiday villages/other),
• and the size in number of bed places.
  The draw is also exhaustive in some regions due to the low number of HOSSAs.

Hotels: survey is conducted with a national sample of 9,600 hotels out of a total of 17,300 Campsites: survey is conducted with a sample of 5,800 campsites out of 7,600. Holiday and Other Short-Stay Accomodations (HOSSA): survey is conducted with a sample of 2,800 establishments out of a total of 3,600.

The response is imputed for accommodation establishments that did not respond to the survey (outside the sample, or with a total or partial non-response) on the basis of the characteristics of the accommodation establishment and the responses from the establishments surveyed.