Head to Head Benetton driver comparison for 1991 season.
[{'label': 'Roberto Moreno', 'data': [15, 10, 15, 9, 11, 10, 10, 10, 10, 10, 10, None, None, None, None, None]}, {'label': 'Nelson Piquet', 'data': [3, 4, 5, 6, 2, 3, 5, 5, 6, 6, 5, 6, 5, 6, 6, 6]}, {'label': 'Michael Schumacher', 'data': [None, None, None, None, None, None, None, None, None, None, None, 16, 14, 14, 14, 14]}]