who of u know how much cds christina aguilera have sell her record???

Question

I mean how much cds christina have sell??? with back to basics

Answer 1

Nearly 342,000 copies of the disc were scanned its opening
week, outselling the debut of her previous effort, 2002's Stripped, according to the latest SoundScan data. Stripped failed to open on top, taking second place with more than 330,000 scans. Aguilera's self-titled 1999 debut did bow at #1 after moving 253,000 units