模板:Certification Table Entry/Sales/NorwegianPeriod

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模板介紹

This helper template calculates periods for Norwegian certifications, as stated in [1] and [2]

For album releases before 2002 the thresholds are 25/50 based on [3] and [4]

For singles, there is no reason to believe a change ever occurred.

It returns:

Before July 2002	Before 2008	From 2008
1	2	3

Returns 0 if the data provided is not sufficient.

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