Head to Head Sauber driver comparison for 1994 season.
[{'label': 'Heinz-Harald Frentzen', 'data': [20, 7, 11, 13, 14, 14, 8, 9, 11, 12, 14, 14, 14, 14, 12, 13]}, {'label': 'Karl Wendlinger', 'data': [6, 10, 8, 9, None, None, None, None, None, None, None, None, None, None, None, None]}, {'label': 'Andrea de Cesaris', 'data': [None, None, None, None, None, 13, 12, 13, 16, 17, 18, 18, 18, 19, None, None]}, {'label': 'Jyrki Järvilehto', 'data': [None, None, None, None, None, None, None, None, None, None, None, None, None, None, 25, 24]}]