I would like to know the answer. But I'd probably rather just know who the top ten were.
Years ago Hubpages would do a little feature blog with highly successful Hubpages authors. So you could know who was really doing well here.
I think such information would be useful, but the problem is we've had lots of issues with plagiarizers stealing content and putting it on their own websites, usually based out of other countries.
You can get some ideas, however, about who the top earners are by looking at their profile pages. I recall a woman who had over 13 million views, and that was several years ago. There are a lot of people now who have over ten million page views. Those folks are obviously high earners here.