PropertyValue
nif:beginIndex
  • 0 (xsd:integer)
nif:broaderContext
nif:endIndex
  • 242 (xsd:integer)
nif:isString
  • Linear interpolation was used to estimate values for intermediate years; (3) per capita income, US Census (years 1979, 1989, and 1999) and County Databooks based on the US Census (years 1969, 1972, 1975, 1981, 1983, and 1988), both via ICPSR.
rdf:type