Шаблон:Certification Table Entry/Sales/FrenchPeriod/doc

This helper template calculates periods for French certifications for singles, based on: A propos des certifications (неопр.). SNEP. Дата обращения: 26 мая 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.