The list as is seems to be of low value, beyond stating what most people would have likely already assumed to be true.

There are 74 countries on the list and only three have very unusually low figures: Cuba, North Korea, Ethiopia. The first two are obvious, the last one has probably changed a lot since ~2013.

After that you spike up to Lebanon at 64 phones per 100 people, with data from 2010. So that's probably 90+ now.

The extreme majority of all adults globally now have a mobile phone, even if it's a $20 KaiOS phone.