If you're looking for a list of historical Attainment 8 estimates (used to calculate Progress 8 for historical cohorts), please see the PDF attached.
A polite Data Collaboration Reminder
Please remember that the collaborative estimates we produce, such as A8, VA estimates, etc. are exclusive to paying customers. Note: This does not impact on sharing your own performance data derived from our estimates (e.g. your school P8 or SPIs) should you wish to do so.