The index measures the monthly evolution of the volume of industrial production (excluding construction). With effect from January 2018 the indices are calculated with reference to the base year 2015 using the Ateco 2007 classification (Italian edition of Nace Rev. 2).
In March 2021 the seasonally adjusted industrial production index decreased by 0.1% compared with the previous month. The growth in the first quarter 2021 with respect to the previous one was +0.9%.
The calendar adjusted industrial production index increased by 37.7% compared with March 2020 (calendar working days being 23 versus 22 days in March 2020).
The unadjusted industrial production index increased by 40.9% compared with March 2020.