Statistics on the services industries are compiled from the results of the annual Survey of Services. The survey covers all establishments, including statutory boards and non-profit organizations, engaged in wholesale and retail trades, restaurants and hotels, transport and storage, information and communications, financial and insurance activities, real estate, business services and community, social and personal services.

Data for the compilation of the Retail Sales and Catering Trade Indices are primarily obtained from the monthly retail sales and catering trade surveys. The indices measure the short-term performance of retail and catering trade industries.

The Wholesale Trade Index (WTI) measures the sales transactions of wholesale establishments in the economy. Data for the compilation of the WTI are from the quarterly survey of wholesale trade.

The Business Receipts Index (BRI) for Services Industries measures the changes in the amount of business or operating receipts. Data for the compilation of the BRI are from the quarterly survey of services and the survey of national income estimates.