Template:Certification Table Entry/Sales/FrenchPeriod/sandbox
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This helper template calculates periods for French certifications for singles, based on: "A propos des certifications". SNEP (in français). Retrieved 26 May 2021.
Parameters: <syntaxhighlight lang="text" class="" style="" inline="1">year</syntaxhighlight>, <syntaxhighlight lang="text" class="" style="" inline="1">month</syntaxhighlight>
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.