2 BLACKSTAR DAVID BOWIE 1
5 BEST OF BOWIE DAVID BOWIE 1
15 NOTHING HAS CHANGED - THE VERY BEST OF DAVID BOWIE 5
34 HUNKY DORY DAVID BOWIE 9
37 THE RISE AND FALL OF ZIGGY STARDUST DAVID BOWIE 10
25 was the best selling album of 2015 after 3 days - worldwide.
Slay. However even three years will be enough for popgirls nowadays to sell as much. So your point and your comparison are needless. Adele is on another level.