Accuracy and reliability
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The accommodation statistics is published on a monthly basis. The numbers are preliminary and revised if there has been any imputations or wrong responses. The final numbers are published approx. 100 days after the end of the reference year and the preliminary monthly numbers rarely differ more than 2-3 per cent from the final numbers.
The accommodation statistics is a census covering all hotels, holiday centers and hostels with a minimum of 40 bed places as well as hostels with a DanHostel-membership. The average response rate is 93 per cent. The statistics offers full coverage when looking at commercial accommodation businesses with a minimum of 40 bed places. The statistics does not provide a full picture when looking at the total number of nights spent in Denmark as businesses with 1-39 bed places and nights spent in private facilities such as AirBnBs or staying with friends and family are not included in the monthly numbers.
The sample error is zero due to the fact that is a census.
The accommodation statistics only covers hotels, holiday resorts and hostels with 40 bed places and more and thus nights spent on small hotels etc. are left out of the monthly publications. Furthermore, there is an issue with the respondents having difficulties understanding the concept of nights spent versus arrivals. Missing responses (approx. 7 to 8 per cent on a monthly basis) are imputed.
Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.
Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.
The accommodation statistics is a census of all Danish hotels, holiday centers and hostels with a minimum of 40 bed places and as well all hostels with a DanHostel-membership. The census is based on hotels under NACE-code 55.1 and holiday centers and hostels under NACE-code 55.2. Some businesses may be registered under a different NACE-code but still be classified as hotels and similar due to the supplied facilities. As a consequence is it not certain that the Business Register covers the entire relevant population.
Data revision - policy
Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.
Data revision practice
Data is revised every month. Data is also revised, if errors are found. When the final data is ready it is only revised due to errors.