Head to Head Lotus-Ford driver comparison for 1968 season.
[{'label': 'Graham Hill', 'data': [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]}, {'label': 'Jim Clark', 'data': [1, None, None, None, None, None, None, None, None, None, None, None]}, {'label': 'Jo Siffert', 'data': [None, 9, 11, 16, 17, 20, 7, 7, 8, 9, 8, 7]}, {'label': 'Jackie Oliver', 'data': [None, None, 25, 15, 15, None, 18, 18, 20, 20, 21, 15]}, {'label': 'Bill Brack', 'data': [None, None, None, None, None, None, None, None, None, 35, None, None]}, {'label': 'Mario Andretti', 'data': [None, None, None, None, None, None, None, None, None, None, 36, None]}, {'label': 'Moisés Solana', 'data': [None, None, None, None, None, None, None, None, None, None, None, 35]}]
