In July 2018, the seasonally adjusted production index reflected an increase of 1.4% compared to June 2018. The calendar adjusted production index reflected a decrease of 2.4% compared to July 2017.
The results for July 2018 are provisional.
What changes from March 2018.
The previously published industrial production indices had 2010 as base year. This means that the weights of the different aggregation levels corresponded to values calculated based on the year 2010. These indices were published with reference year 2010 = 100.
In March 2018, these indices (since 2000) were recalculated to comply as much as possible with Eurostat's recommendations in terms of volume indices: weights as close as possible to the reference year coupled with chain-linking.
The weights used for this index are the values added at factor cost from the Structural Business Survey.
Indices from the year 2013 onwards have also been recalculated based on microdata in order to correct some errors discovered over time.
From March 2018 onwards, JDemetra+ will replace Demetra+ for adjusting gross series. Adjustment models have also been modified.
Ultimately, from March 2018 onwards, indices will be expressed with reference year 2015=100.
These modifications explain the variations found compared to the previously published series.