https://blog.wongcw.com/2020/09/14/canalys%ef%bc%9a2020%e5%b9%b45g%e6%99%ba%e8%83%bd%e6%89%8b%e6%a9%9f%e5%87%ba%e8%b2%a8%e9%87%8f%e5%b0%87%e9%81%94%e5%88%b02-78%e5%84%84%e9%83%a8/