It is because Joey and Juno each only released ONE CD in 2015, whereas others released multiple CD / DVD / Blu-ray (e.g. Sukie - 聽聽 CD + 聽聽 SACD + 聽聽 Vinyl; Miriam - Let's Begin Concert 2015 CD + Let's Begin Concert 2015 DVD + Let's Begin Concert 2015 Blu-ray + 如果大家都擁有海). Multiple releases in a single year do add up!!
Maybe 的士陳 "等等"'s total sale in China has been included. In that case, total sale for 等等 is ...
boy4dudes 發表於 2016-3-31 01:01
以下係ifpi 係website列明銷量只計港澳部分
2. All qualifications are required to be audited by the IFPI (Hong Kong Group) Ltd common auditor.
3. For the purpose of determining sales, all units must be sold by member companies ONLY in the territories of Hong Kong and Macau at a net price of not less than 75% of its normal listed wholesale price. Sales should not include export units, units supplied free whether or not as sales incentive, consignments, stocks returned and stocks existing at retail shops owned by the member company itself.