You don't need the permission of other posters to post what you want, but I think you know that, eh?
If you mean to suggest people should not post off-topic, well...
I don't see this stipulated in the OP, so you might be out of luck this time.
I would suggest a different subforum for that, but even if some did, what would that prove? Absolutely nothing. @Unicorn summarized it perfectly and the reality is the info just hasn't been collected by the BLS. All we can get are highly localized anecdotes. Setting that aside, there is certainly a number, but what if we knew it, so what? It's entirely possible that in the entire universe of working guys, not a single one would make that exact number. It's basically an abstract number that has no practical application. The US median household income in 2016 was $59,039. How about we all just agree to believe this is the number?