Adobe Admin console - users - date and time stamp of account creation and userid of creator

We manually manage our accounts.  I have a user account that has been created, but I'm not sure by whom or when.  The audit report only goes back 90 days, but I cannot find them in the 90 days, so they must go back further than that.  There seems to be no way to do so.  From an audit perspective, I would think it crucial to be able to determine when and by whom an account was created (especially if I have a number of admins and we charge back users for their accounts).