Premise: Dufton is a village and civil parish in Cumbria, England. Historically part of Westmorland, it lies in the Eden Valley and below Great Dun Fell. It is mostly around 180m above sea level. At the 2001 census the parish had a population of 169, increasing to 204 at the 2011 Census.
Hypothesis: Dufton experienced a decline in population from 2001 to 2011.