Like I said, IASF did 2x Circus, from 50x the promotion. And the 3.5M number is old while the 7M number is not official so that's being generous.
I loved the IASF era, but you can't say Britney caught Beyonceitis when she caught some other thing that made her stop working as hard.
Diary and DIL sold, like, the same B'Day definitely sold more then As I Am though, I had thought that sold 6+.