Exactly. I would add that the number of clones (not forks) and file/page views is viewable only by the owner of the repo, so we can only guess. (If you own a github repo, you can see the most recent number of clones and page views by clicking on insight -> traffic.)
My estimate of "one to two orders of magnitude" is based on anecdotal evidence. I edited my comment to reflect as much.
Of course not everyone is the same, but I'd be surprised if overall clones were less than an order of magnitude more than forks or stars, and find two or even three orders of magnitude believable depending on the target group of the repo.