The ages of authors when they publish their first novel? (+rant)

[Razor7826]

Now, I understand that this isn't a technical question, as is the purpose of Pencil Sharpening, but it still seems like the right place to ask this question:

Does anyone have a list or know the average age of authors when they published their first novel? Like, a link a list or any sort of detailed analysis of the issue. I know it might be a bit of a pretentious question to ask something that is ultimately irrelevant, but I'm curious.