Before I look anything up, what do you mean by "the average post"? The Forum used to be much less popular than it is now, with posts getting much less attention. Maybe something like "how many views did the average post from 2020 get in 2020?" And ditto for 90th-percentile posts?
Rather than chasing down a bunch of stats to put into a comment, the best step for us seems to be putting up a "statistics" page that we occasionally update. I'm planning to add something like this in the next ~2 months.
It performed well in some google searches, probably partially because of that link. I would guess that most users game from google, but I haven't checked, I just remember it doing well when I looked in ~May.
Yes, these are total views. But using unique views changes very little; a few posts change position, and "should you donate to Wikimedia" drops to 12th, but the other nine posts in this list are still in the top 10.
Many of the posts here are either highly ranked for certain Google searches or were featured in a major news story, so I'm not surprised they brought in lots of silent readers who never considered making an account. Even the posts that weren't in those categories were shared widely in the broader EA community, and many of those people also don't have Forum accounts.
Unique views were pretty close to total views. Here's a quick screenshot of the two figures for the top ten posts:
I imagine that most repeat views are people reading comments, though it surprises me that the Wikimedia post has the highest fraction of repeat views (since I assume it has many non-EA readers who wouldn't care much about following the discussion). Maybe a lot of people who get ten Wikipedia ads over the course of a year wound up reading it a few times?