The index measures the monthly evolution of the volume of industrial production (excluding construction). With effect from January 2013 the indices are calculated with reference to the base year 2010 using the Ateco 2007 classification (Italian edition of Nace Rev. 2).
In November 2013 the industrial production index seasonally adjusted increased by 0.3% compared with the previous month. The percentage change of the average of the last three months with respect to the previous three months was +0.4.
The calendar adjusted industrial production index increased by 1.4% compared with November 2012 (calendar working days in November 2013 being 20 versus 21 days in November 2012); in the period January- November 2013 the percentage change was -3.1 compared with the same period of 2012.
The unadjusted index of industrial production decreased by 1.8% compared with November 2012.