Question: when did the last frenchman win the tour de france
[{'answer': '1985', 'provenance': [{'wikipedia_id': '23972988', 'title': 'List of Tour de France general classification winners', 'start_paragraph_id': 9, 'start_character': 835, 'end_paragraph_id': 9, 'end_character': 839, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]