About: http://webisa.webdatacommons.org/286036778

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	Mental impairments other than mental retardation are more difficult to measure objectively.In 1983, approximately 37 percent of new beneficiaries qualified based on mental retardation and only 5 percent had other mental conditions.
http://www.w3.org/ns/prov#wasQuotedFrom	aei.org