I can't believe they're still selling so many iPhones. $220 billion yearly revenue is at least 220 million iPhones sold a year. Where are all these people buyin

I can't believe they're still selling so many iPhones. $220 billion yearly revenue is at least 220 million iPhones sold a year. Where are all these people buying new iPhones? I don't think they're really gaining market share in the US at least, so unless it's overseas market share growing people are just replacing their perfectly good phones from a few years ago for reasons I can't comprehend. I mean that's 3 out of every 100 people in the world buying an iPhone just in the last year.