Question: when did ramen noodles become popular in america
[{'answer': '1972', 'provenance': [{'wikipedia_id': '30876121', 'title': 'Instant noodle', 'start_paragraph_id': 207, 'start_character': 99, 'end_paragraph_id': 207, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Worldwide.:Thailand.\n'}]}, {'provenance': [{'wikipedia_id': '30876121', 'title': 'Instant noodle', 'start_paragraph_id': 219, 'start_character': 0, 'end_paragraph_id': 219, 'end_character': 285, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11457250767988035892}, 'section': 'Section::::Worldwide.:United States.\n'}]}]