Looks like they're regularly 100k-500k views with a few outliers every few months in the millions and a couple of times a year hitting 5M. I have no idea how this translates to income.
just anecdotally, among the youtubers i follow those seems like view counts which would allow a solo creator to quit their day job and hire a part-time editor.
As someone who has never even tried to monetize youtube, I am shocked that having that sized audience still can't make a go at it as a FT job. Guess I will stick to programming.