Industrial production index of the Basque Country by month and year according to economic destination of goods. Seasonally adjusted 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.工业生产指数（Industrial Production Index, IPI）是反映工业部门按要素成本核算的总增加值规模变化趋势的短期指标。经日历效应（即工作日与节假日数量）调整的工业生产指数可提供同比可比数值；而开展环比对比时，则需使用经季节调整的工业生产指数（已剔除不足一年的周期性波动影响）。