Barkley on 06 April 2018
I think we can make the general conclusion that Nintendo systems usually start selling faster and peak earlier, but it's not really enough to go on to make any remotely accurate prediction. I don't think looking at sales curves of the previous systems is enough to come to any conclusion other than it will probably peak earlier than systems such as the ps4, maybe in it's 3rd year.
From the data in the OP, there's no telling how high that peak will be, nor how steep or shallow the decline after will be. The data while an interesting experiment, in reality isn't worth much.
