It looks like numbers on NexGenWars are counted from average on how many consoles have been sold on certain interval (so far?). And then it counts that as a trend (in theory sales peaks make this calculation incorrect). If its based mainly (which it looks like) on manufacturers annoncements, then a certain percentage is taken off from sales numbers (for example, 10% of units sold to stores are not sold to customers).
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.