You seem to have a selective on the the market (US) and isolating the fact that Apple is faltering significantly against Samsung and more importantly the O/S Android which will in all respects Apple is beginning to mirror the RIM early performance against competition. You want figures:You continue to have a comprehension issue, this isn't iOS vs Andoriod (Android has vastly larger market share), this is the top two handsets - the iPhone 5 is kicking the Galaxy S3's ass. I noticed you skipped that point.
iOS isn't losing market share to Android, everyone else is:
Yes yes, childish insecure Apple bashing - meh

It is Apple that holds this childish notion that they have a superior product and they haven't been duped into buying an inferior product because they buy the brand not the best product.
We are just trying to shatter the myth so that you can move on and enjoy the best technology has to offer.
We are having an intervention here against a cult belief.
We are trying to help you. I know this is possibly the hardest truth to accept since you learned about Santa Claus - we are your friends - we sympathize with your delusion. Trust us.
BTW: your graph source is Wikipedia which while useful, is only as accurate as the the info people put in.