user: Question: Name the least capacity for persons hour for 1983
Columns: ['Name or route', 'type', 'elevation groundstation', 'elevation mountainstation', 'slope length', 'capacity in persons/hour', 'construction year(s)']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'text']
Sample row: ['Betten Betten Village', 'aerial tramway', 832.0, 1199.0, 872.0, 350.0, '1950 1965']
SQL:

assistant: SELECT MIN("capacity in persons/hour") FROM "Table" WHERE "construction year(s)" = '1983';