Wow! You´re so lucky!
My last shiny pkmn was a Pachirisu caught in the Friend Safari. I was so lucky that day becuase it´s the same day that I get the Burmy!
I though that I have 7 shinies (Luxray, Gastrodon, Lickilicky, Omastar, Pinsir, Mothim, and Pachirisu), but if I count the games gives you and the events I have 12 (Gyarados, Dragonite, Dialga, Palkia and Giratina).