Total: 29

3rd Party: 11 or 37.9%

I'm actually sorta shocked it is that high considering I buy almost everything Nintendo, and 3rd parties have failed pretty hard on Wii. (for example, I have 66% 3rd party games for PS3) It seems like all of the 3rd party games I have on Wii I got either really cheap ($30 or less), unique (think Tiger Woods 2010), or gifts.

60 titles total, 39 are third-party

(39 ÷ 60) × 100 = 65%

EDIT: Here is a breakdown for those who like numberporn (I am crap at maths so don't hurt me)

* Only one title each from different publishers

OH GOD I DIDN'T THINK OF WIIWARE

I went on a bit of a binge recently since I just got my wii back a couple months ago.

Here's my list
1Little King Story
2Muramasa
1Zelda
3RE4 4Umbrella Chronicles
5Silent Hill:SM
2Endless ocean 2 
3mario galaxy
4NSMB Wii
6DBZ budokai tenkaichi (3, i think)
7Naruto shipuden
5Metroid:oM
8Boy and his Blob
9Fifa 11
6PunchOut
10S&P2

...

I think that's it

Oh, and 7wiiplay and 8wiisports

so about 40-45% I guess

My collection is very small, only 7 games. 3 of them are 3rd party.

I'm exactly the same as this.

I had a low % of about 33. But that is because I have 3 Wii games. Only ones on my radar currently in the future are Xenoblade and The Last Story.

multi console owner and damn proud

3rd party     Bully: scholarship edition, King of fighters collection, red steel 2, Tatsunoko vs. Capcom, house of the dead overkill, house of the dead 2&3, muramasa, sonic unleashed, SW force unleashed

1st party, Mario galaxy 2(got it cause of Luigi) & Super Smash Bros. Brawl

thats like 90%  ive had Wii for 2 and a half years and only bought 2 1st party titles aint that some s***,

those people who posted having 30 3rd party games I wanna see that list, not cause I dont believe you I wanna see if I could pick up some new games. seriously

12/30 on my end, mostly Sega with a bit of Ubisoft and Capcom

Wii only: 39 games in total.
Nintendo software: 10 (26%)
Third-party software: 29 (74%)

I'm experimenting a lot, buying cheap third party games which I suspect will be hard to get in the future, often I get burned but sometimes there are really fun games. I can always get the big Nintendo titles when I feel like doing that.

My collection is rather small. I had more titles but traded many of them.

I have 12 Wii games. 5 of them are Third party: Resident evil 4, HOTD 2 3, HOTD:Overkill, Guitar Hero 3 and Tatsunoko vs capcom. I want to buy more soon like Goldeneye, Just dance 2 and maybe Sonic colors but I am not sure.