'stole' this from Rocky Raven
but other than that , here's the list as provided :
1. Britney Spears - Circus 814.000
2. Madonna - Hard Candy 758.000
3. Namie Amuro - BEST FICTION 682.000
4. Mary J.Blige - Growing Pains 648.000
5. Taylor Swift - Fearless 619.000
6. Mariah Carey - E=MC2 617.000
7. Beyonce - I am Sasha Fierce 591.000
8. Pink - Funhouse - 549.000
9. ayumi hamasaki - A COMPLETE ~ALL SINGLES~ 539.000
10. Utada Hikaru - HEART STATION 480.000
11. Koda Kumi - Kingdom 421.000
12. Miley Cyrus - Breakout 398.000
13. ayaka - Sing to the Sky 315.000
14. Enya - And Winter Came... 236.000
15. Janet Jackson - Discipline 232.000
16. Kou Shibasaki - Single Best 227.000
17. Jennifer Hudson - Jennifer Hudson 224.000
18. ayumi hamasaki - GUILTY 202.000
19. Duffy - Rockferry 188.000
20. Christina Aguilera - Keeps Gettin' Better: A Decade Of Hits 161.000
Source -
http://www.mediatraffic.de/
wow look at ayumi go :O