That seems a kinda high to me too. I definitely think this is in the thousands for sure but there are 200 million people in the US, 74 million children aged 0-17 as of 2016 (according to childstats.gov). That would mean one in 100 kids goes poof. 1% of children eventually goes missing still seems high to me. You have a source Heretic of how it's broken down? Does it take into account teen runaways vs. abductions? I mean, if it's just missing persons reports, then I guess that number could be correct. But most missing persons reports a lot of times tend to come back as runaways, like a teen girl running away to see her boyfriend or whatever or a teen sneaking out to see friends.