Note this is reported scams. In some cases the victims may never even realize they’ve been scammed, and even those who do are frequently too embarrassed to talk about it openly. Many victims are also very old or recent immigrants and may not know how to report the scam. There are even scams that specifically target undocumented workers who may not want to report for fear of bringing unwanted attention to them by the government. I personally know half a dozen separate people who were either a victim or very nearly a victim of phone scams, so I have a very hard time believing the number isn’t much higher.