| Switch Sales | 2017 | 2018 |
| France | 911k | 1130k |
| UK | 680k | 830k |
| Japan | 3312k | 3534k |
| US | 4884k | 5855k* |
*using 2M as the Switch estimate for December. From these four countries we have Switch 2018 11.35M, Switch 2017 as 9.79M. That's an increase of 16% YOY. Now, US could be higher, let's say December was 2.5M, in that case its +21% YOY. I'm assuming that this will roughly correlate with the total WW figure, as these countries account for almost 3/4 of the market for Switch.
Switch was supply constrained last year, so shipments are probably going to increase by a bigger amount than this. They shipped 14.86M last calendar year. I think they'll need to ship at least 18.5M this calendar year to hit their 20M target, and that would be a 24.5% increase in shipments. I tell you what, its gonna be very close.