Let the hive mind of Engadget get that for you.
"I'm in the market for a new phone and money isn't a limitation. I'm also not partial to any particular US carrier, but here are some of the features I'd like to have: WiFi, GPS, good coverage in lots of places, push Gmail (a must!), physical keyboard (a must!), a touchscreen, decent battery life and a relatively slim body. And please, nothing that has a fruit logo on it. No offense to the fruit fans, though. Thanks!"
Wow, I'm surprised that Japan's not up there, considering how you see QR Codes stamped onto just about type of advert over there!
Yeah, that was the first thing that came to mind - 15.6%? That would seem a laughable number in Japan.
I checked out the article and Japan is not included in the study, without explanation, so I'm guessing they are so far ahead in these numbers, it was meaningless to include such an outlier.