It sold more than 594,000 copies in its first week, 325,000 on PS3 and 269,000 on PS4.
In the first month (Japan only) it sold 770,000 copies (442854 for PS3 + 327389 for PS4)
That makes it sell on average 15,000 a week from March to July.
Media Create sales threads on NeoGAF
http://m.neogaf.com/showthread.php?t=1003690
http://m.neogaf.com/showthread.php?t=1008307
http://m.neogaf.com/showthread.php?t=1012654
http://m.neogaf.com/showthread.php?t=1017166
http://m.neogaf.com/showthread.php?t=1021522