user: Question: Which Rank is the lowest one that has a Borough of richmondshire, and a Population larger than 8178?
Columns: ['Rank', 'Town', 'Population', 'Year', 'Borough', 'Definition']
Types: ['real', 'text', 'real', 'real', 'text', 'text']
Sample row: [1.0, 'Harrogate', 71594.0, 2001.0, 'Harrogate', 'Town']
SQL:

assistant: SELECT MIN("Rank") FROM "Table" WHERE "Borough" = 'richmondshire' AND "Population" > 8178.0;