About: http://webisa.webdatacommons.org/175145256

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	According to the National Drug Dependency Clinic, the official figure is an underestimate by as much as a factor of 10 because data is only collected on those who contact relevant public institutions.
http://www.w3.org/ns/prov#wasQuotedFrom	state.gov