Densely populated areas and even relatively rural areas will have regular cell towers. This is for the few people out of range at any given time, and also outdo

Densely populated areas and even relatively rural areas will have regular cell towers. This is for the few people out of range at any given time, and also outdoors. 1-3.75% sounds plausible I guess? And there are plenty of much less populated areas than Lichtenstein.