I would be interested in who answered your survey because actual editors are reporting hourly rates for copyediting of $ 35 — $ 50 USD for fiction. (writtenwordmedia.com)
And then, before I could really get my head around the fact that actual editors might actually be reading my book, I got the following phone call: (courtneymilan.com)
They see your book differently than a friend or relative — unless that friend or relative is an actual editor. (selfpublishingreview.com)