Template:Certification Table Entry/Sales/FrenchPeriod/doc

This helper template calculates periods for French certifications for singles, based on: "A propos des certifications". SNEP (in French). Retrieved 26 May 2021.

Parameters: year, month

It returns:

Before November 1988 Before March 1991 Before May 2005 Before July 2009 Before January 2013 Before January 2016 Before April 2018 April 2018 and onward
1 2 3 4 5 6 7 8

Returns 0 if the data provided is not sufficient.