Question: when did daylight savings time start in mexico
[{'answer': '1996', 'provenance': [{'wikipedia_id': '33464657', 'title': 'Daylight saving time in Mexico', 'start_paragraph_id': 1, 'start_character': 81, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33464657', 'title': 'Daylight saving time in Mexico', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 511, 'bleu_score': 0.9140030316935011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9974470314795410605}, 'section': 'Section::::Abstract.'}]}]