https://blog.wongcw.com/2019/11/16/canalys%ef%bc%9a%e8%b0%b7%e6%ad%8c%e7%82%ba%e6%9c%ac%e5%ad%a3%e5%ba%a6%e6%99%ba%e8%83%bd%e9%9f%b3%e7%ae%b1%e5%89%8d%e4%ba%94%e6%a6%9c%e5%96%ae%e5%94%af%e4%b8%80%e4%b8%80%e5%ae%b6%e5%87%ba%e7%8f%be/