Those are numbers for smartphone sales, not the software on them. Hardware sales can be negative, sometimes even intended. Just look at console vendors for that.
Anecdotally, most people I know might spend $20/year on App Store purchases (excluding streaming services if they don’t have a desktop computer).
I’ve made well over six figures for a few years and have never spent more than $100 in a year, the vast majority of those purchases for one off games/apps, not iap coins/tokens/etc.