Nintendo EAD console output N64-Wii U

[PAOerfulone]

And this is just for the consoles, right?
What about handhelds?
Nintendo DS:
Mario Kart DS
New Super Mario Bros
The Legend of Zelda: Phantom Hourglass
The Legend of Zelda: Spirit Tracks
Nintendogs
Animal Crossing: Wild World
Star Fox Command
Yoshi Touch and Go
Big Brain Academy
(9 Games Total)

Nintendo 3DS:
Nintendogs+Cats
Mario Kart 7
Animal Crossing: New Leaf
Animal Crossing: Happy Home Designer
The Legend of Zelda: A Link Between Worlds
New Super Mario Bros. 2
Steel Diver
Steel Diver: Sub Wars
Super Mario 3D Land
(9 Games Total)

They've actually developed less games for handhelds than for consoles, the difference why it isn't noticeable is because one has 3rd Party Support, the other doesn't. (Also, one has Pokemon, the other doesn't).
So going off of Generations, more specifically Gens 7 & 8.
Between the DS and Wii, Nintendo EAD (now EPD) made 24 games.
Between the 3DS and Wii U, they made 20.
Also, some of those games you listed were co-developed or had some assistance by other companies, like how Monolith helped out with Skyward Sword.
So I would count Star Fox Zero as well, since that game was in development before Platinum jumped on board to help out. Remember last year's E3 when Miyamoto said that he was looking for a 3rd Party studio to help him and his team develop Zero. So technically the Wii U has 12 games developed by EAD, which brings their 8th Gen total to 21.