The purpose of the statistics is to describe the yearly opening hours and the number of visitors to Zoos, Aquariums and Botanical gardens. The statistics has been compiled since 1985.
Visitors and yearly opening hours to the different types of zoos and each individual zoo, aquarium and botanical garden. The statistics have been revised in 2016
The statistic is annually. The data is collected through electronic questionnaires. The collected data is validated by comparing this years numbers with the former numbers. If a zoo have large fluctuations in the number of visitors from one year to the next, Statistics Denmark contact the facility to get a clarification. Data is aggregated and if some zoo's haven't answered the questionnaire data from last year gets imported.
The users are primarily the Ministry of Cultural Affairs, The Danish Agency for Culture and Palaces and organizations engaged in activities within in the field of zoos aquariums and botanical gardens and the news media.
The user satisfaction is not measured.
The statistics are compiled on the basis of (in principle) all zoos, aquariums and botanical gardens, but some non state-subsidized zoo do not answer the questionnaires. There will be the a low number of visitors for non state-subsidized zoo or gardens. State-subsidized zoo or gardens have a good coverage.
The statistics are published annually approx. 4 months after the reference period.
Comparability concerning number of visitors is possible from 1984 onwards at the level of the individual zoo, aquarium and botanical garden. At the aggregated level there is a certain level of uncertainly due to an increase of the population; especially in the period 2009 - 2011.
The statistics are published in Nyt fra Danmarks Statistik (News from Statistics Denmark), in http://www.statbank.dk and on the subject side on DST.