user: Question: how many reports of races took place on October 16?
Columns: ['Rnd', 'Race Name', 'Circuit', 'City/Location', 'Date', 'Pole position', 'Winning driver', 'Winning team', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Checker 200', 'Phoenix International Raceway', 'Phoenix, Arizona', 'April 10', 'Rick Mears', 'Mario Andretti', 'Newman/Haas Racing', 'Report']
SQL:

assistant: SELECT COUNT("Report") FROM "Table" WHERE "Date" = 'October 16';