Assertion: auk's number | /r/CapableOf | show a 53% population decline
Facets:
value: between 1993
type: TEMPORAL
value: between 1971
type: TEMPORAL
Source sentences:
text: Numbers counted in U.S. Fish and Wildlife Service surveys in Alaska show a 53% population decline between 1971 and 1993, for example, and survey count numbers have dropped in continental Europe as well.