About: http://webisa.webdatacommons.org/409580971

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	The Census Bureau and other statistical agencies were encouraged to collect the kind of data we needed, and we undertook some major surveys ourselves in later years.
http://www.w3.org/ns/prov#wasQuotedFrom	ssa.gov