user: Question: How many people were in attendance for the game week 15?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 7, 1981', 'at Cleveland Browns', 'W 44–14', 78904.0]
SQL:

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