prinz_valium on 15 August 2014
end of 2013 us ps 4 sales account for ~47% of all ps4 sales
janury - end of march 2014 us ps4 sales account for ~ 32,5% of all ps4 sales including the big japan launch
april - end of july 2014 us ps4 sales account for ~ only 28% of all ps4 sales with abysmal japan sales
lifetime to date us ps4 sales account for about 38% of all ps4 sales
