I can go on with additional cases like Finland and their shipment certifications looking like retail sales and Korea and their format separations. Undeniably, national charts aren’t properly aligned. The conclusion to come away with is that taking various figures completely different in their nature and adding them with no adjustment is just wrong. When I first started this blog I pointed out how collecting raw data wasn’t enough, that it is needed to add an analysis layer. Countless sites collect data, but that analysis layer is still very poorly covered. I hope this article will provide some assistance in order to reach that understanding and ultimately get more accurate statistics.
In the meantime, the below table summarizes the main differences of previously mentioned countries’ figures.
*Yes since 3 weeks
**Poland system pre-08/2015
Each and every time you read a sales number, my suggestion is for you to do the exercise of identifying all those parameters for the said figure. If that sounds too painful to do, well, you still have CSPC articles that erases all those problems to settle with consistent and comprehensive totals!
As usual, feel free to comment and / or ask a question!
Sources: IFPI, Billboard, OCC, Oricon, RIAJ, UKMix, Haven, SNEP, Charts In France, IFPI.DE, ZPAV, Media Control GFK, Promusicae, IFPI.SE, Mediatraffic.