user: Question: How many times was the high rebounds by Marcus Camby (18)?
Columns: ['Game', 'Date', 'Team', 'Score', 'High points', 'High rebounds', 'High assists', 'Location Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [18.0, 'December 1', '@ Boston', 'L 95–99 (OT)', 'Wesley Matthews (23)', 'Marcus Camby (9)', 'Andre Miller (6)', 'TD Garden 18,624', '8–10']
SQL:

assistant: SELECT COUNT("Date") FROM "Table" WHERE "High rebounds" = 'Marcus Camby (18)';