user: Question: What is the average number in attendance on September 16?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['September 1', 'Indians', '7–2', 'Padilla (13–9)', 23776.0, '69–67']
SQL:

assistant: SELECT AVG("Attendance") FROM "Table" WHERE "Date" = 'September 16';