https://blog.wongcw.com/2021/02/04/canalys%ef%bc%9a2020%e5%b9%b4%e7%ac%ac%e5%9b%9b%e5%ad%a3%e5%ba%a6%e5%85%a8%e7%90%83%e9%9b%b2%e6%9c%8d%e5%8b%99%e5%b8%82%e5%a0%b4%e6%bf%80%e5%a2%9e100%e5%84%84%e7%be%8e%e5%85%83/