About: http://webisa.webdatacommons.org/242053569

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	All demographic variables combined, including age, sex, income, race, and education, are responsible for only 15 percent of the difference in happiness levels between individuals.
http://www.w3.org/ns/prov#wasQuotedFrom	thegreenskeptic.com