system
A chat on subreddit /r/PoliticalCompassMemes
human
There was some study out of Pennsylvania that found greater than 50% of the children in the foster system got abused or trafficked while they were in it. 

Tried to find it again recently but it's been memory holed by Google.
gpt
I doubt there's a way to know, but do we know how common it was back when orphans/foster kids were handled by NGOs? (Charities, Philanthropic groups, religious organizations, extended family, etc.)