Analyzing Nintendo's yearly output over the last 22 years, shows they create 2.7 quality exclusives per year.

[VGPolyglot]

Cerebralbore101 said:

Ljink96 said:
For 2016, there was Paper Mario Color Splash, and although it isn't favored by fans, it's still a very quality game. And what about 2017's ARMS? What really is your definition of Quality in this sense?

Minimum of 10 reviews, and scoring at least 80%. Arbitrary I know, but we've got to start somewhere. 

You're breaking your own rule with SSB though.