Just did some tweaking to my algo for measuring usage. Here's the top ten relays by zap activity.

It's crude but it takes the latest 100 zap receipt events and measures the time between the latest and earliest one and ranks by the difference between those numbers.

If there aren't 100 zap receipts they don't get a ranking for "usage"

Doing this in python is pretty terrible so I'm sure it's buggy and I'm open to suggestions on ways to do this better. It was at least a fun exercise in how bad I am mat async operations in python.