Impressive given the sales climate and that she debuted when album sales in general were beginning to decline. I mean she's averaging 4MWW an album that's nothing to be ashamed about especially given her yearly releases.
Um, by the time unapologetic era iiis finished, she'll be at 30M, which equals 4.3M is average. Given her yearly releases and lackluster promo, that's more than great. Don't forget that people are buying A LOT of her singles (150M digital singles sold)