Template:Certification Table Entry/Sales/AustrianPeriod/doc

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This helper template calculates periods for Austrian certifications, as stated in this source, which was sent by an authority in IFPI Austria.

It returns:

Before 1988 Before 2001 Before April 2002 Before 2007 Before 2103 From 2013
1 2 3 4 5 6

Returns 0 if the data provided is insufficient