Where is some of this data coming from?
Settlement Information
This document in PDF form
Case 2:11-cv-09405-CAS-FFM Document 56-2 Filed 12/23/13 Page 5 of 44 Page ID #:735
Keep in mind that this document is ~4 years old and the figures therein only represent the claims Porsche paid. I don't see the 1% and 8% figures on a quick scan, I'll let you all find them.
If you aren't a lawyer, don't read these documents as most of them are just a justification for lawyers fees.