Head to Head Toleman driver comparison for 1984 season.
[{'label': 'Johnny Cecotto', 'data': [20, 27, 27, 20, 24, 25, 22, 23, 24, 24, None, None, None, None, None, None]}, {'label': 'Ayrton Senna', 'data': [24, 11, 12, 13, 14, 9, 10, 10, 11, 9, 10, 10, 11, None, 11, 9]}, {'label': 'Stefan Johansson', 'data': [None, None, None, None, None, None, None, None, None, None, None, None, None, 17, 17, 17]}, {'label': 'Pierluigi Martini', 'data': [None, None, None, None, None, None, None, None, None, None, None, None, None, 34, None, None]}]