Industrial Production Index (IPI) is a key macroeconomic indicator focusing on the total output of all US factories. It is computed as a percentage of current year and base year industrial output.
Additional meaning of Industrial Production Index - IPI:
The reference year for the index is 2002 and a level of 100. A high industrial index shows economic growth, while a low index reflects that industry is falling, The statistic is released monthly by the Federal Reserve Board.