Top ten highest selling albums by a solo J-Pop female so far this year:
01. Namie Amuro - Uncontrolled (443,229)
02. ayaka - The beginning (209,516)
03. BENI - COVERS (167,241)
04. Koda Kumi - JAPONESQUE (151,343)
05. Ayumi Hamasaki - Party Queen (146,600)
06. aiko - Toki no Silhouette (138,860)
07. YUKI - POWERS OF TEN (122,806)
08. Kyary Pamyu Pamyu - Pamyupamyu Revolution (111,257)
09. Che'Nelle - Luv Songs (92,542) [was released July 20th, 2011; total sales (300,981)]
10. Che'Nelle - Believe (80,000)
Overall it's a pretty bad state for solo females in Japan.
One can only hope girl groups and boy bands will fade out soon