Industrial production index of the Basque Country. Summary table. Corrected calendar effects data (p).

The Industrial Production Index (IPI) is an indicator of a short-term nature of the evolution experienced by the volume of gross value added at the cost of factors in the industrial sector. The corrected Industrial Production Index of calendar effects (number of working days and holidays) offers comparable values year on year, while for month-on-month comparisons the seasonally adjusted Industrial Production Index (corrected the effect of periodic fluctuations of less than one year) is used.