They do not keep any statistics to answer your challenge. That is why you have not gotten one.
The media manages to find incidents of gun owners shooting themselves, shooting wrongfully, killing their children accidentally, having their guns taken away from them by criminals, etc. And yet the, apparently, multitudes of incidents where .22s fail to stop a private citizen's attacker somehow don't make it into the media? I'm not buying it. I've had this discussion many times before. That argument is a Red Herring fallacy of logic.