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Metadata
- Summary information
- Statistical quality information
- High level information
- Keywords
- Weblinks
- Open Data
General description
The Index of Market Services (IoMS) contains indices referenced to 2019=100. These are sourced from the Regional Accounts at the Section level. The series are seasonally adjusted unless otherwise stated.The Index of Market Services for Wales is composed of nine sections covering the Standard Industrial Classifications (SIC) 2007 of:
Section G - Distribution;
Section H - Transport;
Section I - Accommodation and Food Service Activities; Section J - Information and Communication Activities; Section K - Financial and Insurance Activities;
Section L - Real Estate Activities;
Section M - Professional, Scientific and Technical Activities;
Section N - Administration and Support Services Activities and Section RST - Other Service Activities.
Due to the volatility some of the sub-sections contained within the Index of Market Services for Wales have been excluded from the publication. In addition some of these sub-sections are potentially disclosive so again these have been excluded from the publication. Additionally there are no UK equivalent sub-sections for the Index of Transport and the Index of Retail Estate Activities.
We recommend that when looking at the growth rates of volatile series, users should focus on the percentage change between the latest four quarters and the same period a year ago (long term trend).
Data collection and calculation
Due to the seasonal adjustment methodology, estimates for previous quarters are subject to revision when a further quarter is added. Estimates for individual quarters fluctuate due to random sampling error and emphasis is usually placed on changes in the average of the latest 4 quarters, or on the annual averages.The data are jointly produced by the Welsh Government and the Office for National Statistics.
The Welsh Index of Market Services has been classified as a National Statistic.
Note also that comparable data giving the equivalent indices for the UK as a whole are also included in this dataset
Frequency of publication
QuarterlyData reference periods
1999 to 2024Statistical quality
Due to the volatility some of the sub-sections contained within the Index of Market Services for Wales have been excluded from the publication. In addition some of these sub-sections are potentially disclosive so again these have been excluded from the publication. Additionally there are no UK equivalent sub-sections for the Index of Transport and the Index of Retail Estate Activities.We recommend that when looking at the growth rates of volatile series, users should focus on the percentage change between the latest four quarters and the same period a year ago (long term trend).
Due to the seasonal adjustment methodology, estimates for previous quarters are subject to revision when a further quarter is added. Estimates for individual quarters fluctuate due to random sampling error and emphasis is usually placed on changes in the average of the latest 4 quarters, or on the annual averages. A link to a statisticcal quality report is below:
http://gov.wales/statistics-and-research/index-market-services/?lang=en#/statistics-and-research/index-market-services/quality-report/