Accredited official statistics

Northern Ireland index of services: Q4-2015

Quarterly index of the Northern Ireland private sector services.

Documents

Northern Ireland index of services: Q4-2015

Details

The IOS is a National Statistics survey designed to measure changes in quarterly output for the Service Sector. The sampling frame used is Inter-departmental Business Register (IDBR). A stratified sampling technique known as the Neyman Allocation is used. Each stratum is indexed currently using 2012 = 100 as the base year. The overall Index of Services is calculated by weighting together industry level indices that describe the activity of an industry sector using the Standard Industrial Classification (SIC). Weights are based on the relative share of regional GVA on an annual basis.

Updates to this page

Published 16 March 2016

Sign up for emails or print this page