I get that the network can't know this with any level of certainty. But, somebody out there must be publishing some data, at least as seen by their node or business.
The two sources who have posted material, anecdotes, that I know of are:
- LN Markets
- Umbrel
...but it's not a timeseries of data. Maybe somebody out there has a couple of nodes, specifically attempting to measure/infer network attributes. Wondering if you guys know something.