Accuracy and reliability

Overall accuracy

Accounts are collected for app. half of the population. Production and gross output for the rest of the population is covered by data form the Danish Fisheries Agency's Aquaculture Register. Therefore the main variables Production and Gross output are covered by 100 percent. The part of the population that is not in the sample is estimated from production information from The Danish Fisheries Agency's Aquaculture Register.

Data in The Danish Fisheries Agency's Aquaculture Register contains structure and production data for the relevant calendar year. The submitted accounts data refers to the firms relevant financial year, witch might not correspond to the calendar year. To cover the production in the relevant calendar year, the end of the financial year must be in the period of 1st. June (the relevant year) to 31st. May the following year.

Sampling error

The main variables production and gross output are collected from administrative registers. Hence. there is no sampling error for these variables. For other variables the sampling error varies depending on how many have reported for the particular farm type.

Non-sampling error

The sampling error is also affected by the size distribution of the farms in each segment.

Quality management

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.

Quality assurance

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.

Quality assessment

The quality of the statistics is regarded as good. Annual accounts are collected for about half of the population. Production and Gross output for the rest of the population is covered by data form the Danish Fisheries Agency's Aquaculture Register. Therefore the main variables Production and Gross output are covered 100 percent. The part of the population that does not participate in the statistics is being estimated on the basis of production information from The Danish Fisheries Agency's Aquaculture Register and the submitted accounts divided in representative groups.

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

There are no planned revisions of Account Statistics for Aquaculture.