The average weekly earnings of industrial workers in manufacturing industries, commonly referred to as the "average industrial wage", were £229.32 in June 1991 and were provisionally estimated to have been £232.76 in September 1991, the latest date for which information is available.
These estimates are derived from the quarterly industrial inquiry conducted in respect of March, June, September and December each year. The survey is based on a representative sample of establishments with ten or more persons engaged in each industrial sector. The estimates for June 1991 are compiled from details provided by approximately 1,300 respondents who account for approximately 70 per cent of total industrial employment.
The earnings estimates provided for industrial workers cover operatives, maintenance workers, storekeepers, packers, cleaners, basic supervisory staff and apprentices. It excludes clerical and managerial workers.
The details collected in respect of earnings relate to the gross amount paid to employees before deduction of income tax, PRSI, etc., include overtime, service pay, shift and other allowances, commissions, production and regular bonuses. Irregular bonuses, back-pay and redundancy pay are excluded.
Each respondent establishment provides details of total employment, earnings and hours worked for the period in question. For different categories of staff these returns are separately aggregated within three establishment size categories in each of 109 industrial sectors. The overall estimates are then compiled by weighting the averages for all sample establishments in each of the cells. The weighting used is the estimated total employment of relevant staff in each cell.