I don't know how accurate their numbers are, but the United World Chart (www.mediatraffic.de), MCIIY sold 549,000 worldwide through this week. It sits at #40 in its eighth week on that chart with 90,000 sold worldwide.
We don't have SS numbers yet, but MCIIY probably sold ~65k in the US this week which would bring its US total to ~428k, not too bad for the first year out. If we are to believe the UWC numbers above, that would mean MCIIY sold 121k outside the US this year.
Congrats to Mariah on another amazing era filled with timeless music and consistent success! Hope she enjoys motherhood, takes whatever time she wants whether thats a few months or a few years, and I look forward to the day we get to hear an all new Mariah on record!