user: Question: For week 15, what was the total number of attendance recorded?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 9, 2001', 'at Buffalo Bills', 'W 24-6', 71447.0]
SQL:

assistant: SELECT SUM("Attendance") FROM "Table" WHERE "Week" = 15.0;