About: http://webisa.webdatacommons.org/234528679

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	However, the number is a rough estimate and is not derived from a systematic assessment in the population.
http://www.w3.org/ns/prov#wasQuotedFrom	oxfordjournals.org