Accuracy and reliability

Overall accuracy

Data are based on direct measurement of gas flows which are assumed to have a high precision.

Sampling error

Not relevant for this statistic.

Non-sampling error

Data are based on direct measurement of gas flows and are hence quite accurate. The results are checked before publication to avoid calculation errors.

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 primary quality of the this statistic is to deliver data on a very short time frame that shows the trends. The statistics is produced in the same way for all weeks. All periods are updated at each publication. There is no expected revisions of data as the source data are collected ongoing.

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 is no expected revisions of data as the source data are collected ongoing. However, all periods are updated at each publication to ensure that revisions of source data are included.