|Unit||Index 2015=100, NSA|
|Adjustments||Not Seasonally Adjusted|
These statistics show the trends in prices relating to the first commercial transaction of each commodity. The statistics can me traced back to 1876 and have been produced with variations since then. The producer price index divided by industries have been calculated since year 2000, and the import price index divided by industries have been calculated since 2005. Price index for domestic supply dates back to 1981.
The source writes:
The Producer and import price index for commodities indicates trends in prices relating to the first commercial transaction for commodities that are produced in Denmark or imported to Denmark
The producer- and import price index for commodities is based on approx. 6400 prices, reported by selected producers and importers in Denmark. Approx. 3500 prices are used for calculating the producer price index, approx. 2900 prices are used for calculating the import price index and approx. 4900 prices are used for calculating the price index for domestic supply. The prices are collected every month through an electronic questionnaire and validated.
The validated data are then aggregated in a hierarchical system to calculate the producer- and import price indices for commodities.
The sample contains 6400 prices from Danish manufacturers and importers. The most important enterprises within selected areas are requested to report prices. In this way it is ensured that the producer and import price index covers at least 70 percent of Danish production and imports. It is therefore assumed that price developments in the sample represents the price movements in the population.
Producer and import price index for commodities can be found as a complete time series. The statistics follows international standards and can therefore be compared with similar statistics from other European countries.
The producer- and import price index for commodities is divided by Industry following Danish
Industrial Classifications 2007 (DB07). Dansk Branchekode 2007 (DB07) is very similar to NACE rev. 2. The only difference is the subdivision of some classes, e.g. 64.20.10 indicates that NACE Rev. 2 class 64.20 has been subdivided whereas 38.31.00 indicates that class 38.31 has not been subdivided.
Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are in this case supplemented by a specific revision practice which states only final figures are published.
The index base year is advanced periodically.
At the same time, the sample is evaluated, and a disclosure analysis is performed. Detailed series that would violate confidentiality are suppressed.