user: Question: What is the total Decile with Waikanae Area?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Kapanui School', '1–8', 'Coed', 'Waikanae', 'State', 8.0, 532.0]
SQL:

assistant: SELECT SUM("Decile") FROM "Table" WHERE "Area" = 'Waikanae';