kenjab on 01 February 2018
I think quickrick may be right, at least partially. The date of sell-through isn't specifically mentioned, but if you look at the charts of Switch vs. Wii & WiiU sales in the Policy Briefing PDF, the latest week of data for Switch is at Week 47 after launch, which would be the week ending Jan 20, 2018. So I'd peg the sell through numbers from that date.
Switch: SW-3707-5131-3911
XBox: Kenjabish
