About: http://webisa.webdatacommons.org/138570136

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They did not compare job categories but instead aggregated private and public sector workers into separate groups, averaged it out and then adjusted based on education and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	calwatchdog.com