For some service activities, employment indicators based on administrative records of the Ministry of Labor are used. Using data on physical production, number of employed individuals, or other variables related to the level of economic activity, sectoral indicators of change in real output are constructed. The indices cover Brazil by activity. The data come from the IBGE's own surveys and from outside sources. The Department is still responsible for a survey on the public sector.
Production is obtained using indicators of volume or physical units.
The IBGE's own surveys and other sources such as Petrobras, Ministry of Transportation, etc. The indices are calculated using a Laspeyres formula with the preceding year's weights.