Privacy and Cookie Policy

We use cookies to improve the user experience. By continuing on this page, you accept our use of cookies.

OK

Please read our Privacy and Cookie Policy here to find out more.

Accuracy and reliability

Contact info

Short term statistics, Department of business statistics.
Søren Dalbro
+45 3917 3416

sda@dst.dk

Get as PDF

Car Register and Publications

The register and the publications are generally highly precise and reliable with only very limited changes to former published data. These corrections does by experience only result in very limited corrections in the main figures formerly published, i.e. less than 0.5 per mille.

The seasonal adjusted series are of good quality with well defined seasonal patterns.

The number of families in the publications of the families purchase of or access to private cars are fully compatible with the numbers in the area of population statistics.

Overall accuracy

The register and publications with vehicles

The register and the publications are generally highly reliable with only very limited changes to former published data.

There are in principal no delayed registrations in the Digital Motor Register, DMR, but corrections to former registrations may occur.

These corrections does by experience only result in very limited corrections in the main figures formerly published, i.e. less than 0.5 per mille.

The seasonal adjusted series are of good quality with well defined seasonal patterns.

There have in the autumn 2012 been some changes in the taxation rules of some vehicles used in the business sector which may have caused some alterations in the seasonal patterns of the business purchase.

The number of families in the publications of the families purchase of or access to private cars are fully compatible with the numbers in the area of population statistics.

Sampling error

Not relevant for these statistics.

Non-sampling error

Not relevant for these statistics.

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 register and publications with vehicles

The register and the publications are generally highly reliable with only very limited changes to former published data.

There are in principal no delayed registrations in the Digital Motor Register, DMR, but corrections to former registrations may occur.

These corrections does by experience only result in very limited corrections in the main figures formerly published, i.e. less than 0.5 per mille.

The seasonal adjusted series are of good quality with well defined seasonal patterns.

There have in the autumn 2012 been some changes in the taxation rules of some vehicles used in the business sector which may have caused some alterations in the seasonal patterns of the business purchase.

The number of families in the publications of the families purchase of or access to private cars are fully compatible with the numbers in the area of population statistics.

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

All new registration and used car sale figures for the previous 25-36 months in StatBank Denmark are revised at every new release.

The seasonally adjusted figures are revised back to January 2000 at every new release. An updated version of the seasonal adjustment software is applied from January 2016.