No one ever wants to provide it, though.
> cant read at all when they enter.
That's a pretty important confounding factor, don't you think? Might that change the way one should interpret the data - knowing that kids weren't starting at a level playing field, but in fact playing catch-up from the beginning?
> To CPS's credit they do pretty decently taking all these kids who are far behind and brining them almost to grade level, but its just hard for me to say thats a huge accomplishment when tons of kids are still so far behind.
What precisely do you expect a school district to do? If kids are behind, it's going to take more time and effort to get them up to speed and there are only so many hours in a day; only so many days in a year; only so many years before the kids leave at 18. Sounds like you expect a miracle, and I don't think any other district could do what you're expecting either.
CPS does a pretty damn good job, even by your own account.