Assertion: population census | /r/HasProperty | taken
Facets:
value: since
type: TEMPORAL
Source sentences:
text: The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every ten years.
text: The first Federal Population Census was taken in 1790, and has been taken every ten years since.
text: The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years.