(according to her updated wikipedia page)
http://en.wikipedia.org/wiki/Rihanna_discography
Music of the Sun
UK: 142,792 (as of 2011)[23]
US: 609,000 (as of 2013)[24]
World: 4,000,000 (as of 2014)
A GIrl Like Me
UK: 587,308 (as of 2011)[23]
US: 1,349,000 (as of 2013)[24]
World: 6,000,000 (as of 2014
Good Girl Gone Bad
UK: 1,850,000 (as of 2012)[34]
US: 2,800,000 (as of 2013)[24]
World: 13,000,000 (as of 2014)
Rated R
UK: 656,527 (as of 2011)[42]
US: 1,110,000 (as of 2013)[24]
World: 5,000,000 (as of 2014)
Loud
FRA: 355,000 (as of 2013)[50]
UK: 1,800,000 (as of 2012)[34]
US: 1,761,000 (as of 2013)[24]
World: 10,000,000 (as of 2014)
Talk That Talk
FRA: 200,000 (as of 2013)[50]
UK: 1,000,000 (as of 2013)[50]
US: 1,118,000 (as of 2013)[24]
World: 7,000,000 (as of 2014)
Unapologetic
FRA: 240,000 (as of 2013)[50]
UK: 635,000 (as of 2013)[50]
US: 1,113,000 (as of 2013)[24]
World: 5,000,000 (as of 2014)