Template:Certification Table Entry/Sales/MexicanPeriod
This helper template calculates periods for Mexican certifications, based on this source
It returns:
| Before 1999 | Before 2000 | Before July 2003 | Before 2008 | Before July 2009 | Before November 2020 | From November 2020 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Returns 0 if the data provided is not sufficient.