user: Question: How many weeks have an attendance of 64,116?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 11, 1966', 'at San Francisco 49ers', 'T 20-20', 'Kezar Stadium', '29,312']
SQL:

assistant: SELECT COUNT("Week") FROM "Table" WHERE "Attendance" = '64,116';