The document summarizes GCSE and attendance results from schools in Middlesbrough, England over 5, 10, and 20 year periods. It shows that Middlesbrough schools improved their GCSE scores in subjects like English, maths, and other subjects more than English schools on average. Middlesbrough also saw larger increases in the number of students receiving entry-level qualifications and higher value added scores compared to baseline. School attendance rates also rose more substantially in Middlesbrough than across England over the periods examined.