Head to Head BMW Sauber driver comparison for 2006 season.
[{'label': 'Nick Heidfeld', 'data': [12, 18, 8, 10, 12, 10, 10, 9, 9, 9, 10, 10, 9, 9, 9, 9, 9, 9]}, {'label': 'Jacques Villeneuve', 'data': [None, 10, 9, 11, 11, 12, 13, 12, 12, 13, 13, 13, None, None, None, None, None, None]}, {'label': 'Robert Kubica', 'data': [None, None, None, None, None, None, None, None, None, None, None, None, None, 23, 15, 16, 16, 16]}]