Assertion: lemming's population | /r/CapableOf | peak on traill island
Facets:
value: in 1990
type: TEMPORAL
Source sentences:
text: On Traill Island, populations peaked at more than 10 rodents per hectare in 1990, 1994, and 1998—but since then, there have been scarcely more than two lemmings per hectare in each 4-year cycle.