user: Question: what is the highest attendance for week 6?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 21, 1975', 'at Green Bay Packers', 'W 30-16', 52613.0]
SQL:

assistant: SELECT MAX("Attendance") FROM "Table" WHERE "Week" = 6.0;