الگو:Certification Table Entry/Sales/SpanishPeriod
This helper template calculates periods for Spanish certifications, as stated in سازندههای موسیقی اسپانیا
It returns:
| Before November 2005 | Before 2009 | Before November 2011 | From November 2011 |
|---|---|---|---|
| 1 | 2 | 3 | 4 |
Returns 0 if the data provided is not sufficient.