unfortunately that’s not really accurate since everyone going through N400 process would have to be registered on lawfully, but is not the case.

Whats your filed date and FO?

try https://www.casestatusext.com/

There are general analytics for n400 (and other forms). and this still will leave you guessing. there is a lot of variance and from the outside you can't predict if you are going to be a fast or a slow case. if the link displays funny google casestatusext