https://en.wikipedia.org/wiki/List_of_sovereign_states_by_In...
Not that all speeds above 20 Mbps are equal, but there are heavy diminishing returns. IMO, I would rank countries by percentage of 50+Mbps internet connections.
You probably need to measure lower percentiles to get an idea of how bad it can get.
Suppose you were looking at countries median car top speed. Fining one countries median is 150 MPH vs 156 just don’t tell you much when you can’t drive that speed on public roads. Or in internet terms Netflix etc isn’t sending 8k stream let alone multiple 8k streams.
On the other hand many internet connections can’t handle a single 4k or even 1080p so percentage of connections over X threshold is more impactful.
Now if people where measuring say the median miles per gallon or in internet terms say latency or bandwidth caps then the median actually matters more.
Meanwhile millions of Americans are stuck with 1.5 Mbps DSL or really expensive Satellite internet.