Head to Head Team Lotus driver comparison for 1972 season.
[{'label': 'Emerson Fittipaldi', 'data': [12, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]}, {'label': 'David Walker', 'data': [None, 17, 17, 21, 24, 24, 25, 26, 26, None, None, 28]}, {'label': 'Dave Charlton', 'data': [None, 28, None, None, None, 33, 35, 35, None, None, None, None]}, {'label': 'Reine Wisell', 'data': [None, None, None, None, None, None, None, None, None, None, 29, 31]}]