I'm pretty late to this, but your statistics are smartphones shipped, which isn't really representative because people with iPhones tend to use their particular model for longer than Android users, which go through phones quicker for one reason or another. I was going off of operating system market share, which is primarily determined by web browser user agents. It is more representative of active phone users and doesn't need to rely on who's buying a new phone or who's sticking with their older one.

Again, the smartphone manufacturing market isn't in question, it's the software markets that are tied to those smartphones.