user: Question: What is Attendance, when Week is 5?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 16, 1973', 'San Francisco 49ers', 'W 21–13', 68275.0]
SQL:

assistant: SELECT "Attendance" FROM "Table" WHERE "Week" = 5.0;