Yep, how was the data collected? "involved in a crime" is a nebulous term. It could mean victim as well as perpetrator.
I'd like to know who this data was collected? Self reporting? I'd think the answer should be 100% if it just means adjacent to someone who committed a crime and well above 505 50%. if it meant committed any crime no matter how trivial. Jay walking, drinking under age, giving booze to someone underage(no matter what age you were at the time), drugs of any kind, drunk sex, trespassing, vandalism, etc. All the crimes attorneys and cops know you committed that you don't even know are crimes.
Side note: because I've changed my social circle quite a lot over the years. There are people who don't know anyone who hasn't been to jail and who would be surprised to find out you haven't been and there are people who don't know any one who has been to jail and who would be surprised to find out you have been. I like to remind my current associates of that occasionally.
Edit, I was going to change the typo but its redundant so....Also other typos.