Question: What was the 2015 population of the city where Garsington Manor in located?
Sentence (from "Garsington Manor"): The house is currently owned by the family of Leonard Ingrams and from 1989 to 2010 has been the setting for an annual summer opera season, the Garsington Opera, which relocated to Wormsley Park, the home of Mark Getty near Stokenchurch in Buckinghamshire, in 2011.
Relevant evidence: No