I believe the most likely source is:
<a href="http:&#x2F;&#x2F;www.ipcommission.org&#x2F;report&#x2F;IP_Commission_Report_052213.pdf" rel="nofollow">http:&#x2F;&#x2F;www.ipcommission.org&#x2F;report&#x2F;IP_Commission_Report_0522...</a><p>The use of &quot;as much as 80%&quot; does suggest bias although it sounds little better and a bit awkward to use the more generous wording, &quot;as little as 50%&quot;.