Do You know, what is the percentage of repeated criminal offenses today? 90%!!!

I had a conversation with one of the police department heads.
Do You know, what is the percentage of repeated criminal offenses today?
90%!!! and a couple of years ago it was 70% ...
What does it mean?
This means that out of 900 prisoners of the convict colony of intensive regime, who were imprisoned for the first time, 810 will repeat the crime..
I will continue to do what I can do. And if these repeated offenders will be one less – the time spend and the efforts were not in wain.