user: Question: Which week with Green Bay Packers as an opponent is the highest?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17, 1961', 'at Philadelphia Eagles', 'L 27–20', 60671.0]
SQL:

assistant: SELECT MAX("Week") FROM "Table" WHERE "Opponent" = 'Green Bay Packers';