Question: when did the 8 track tape come out
[{'answer': '1964', 'provenance': [{'wikipedia_id': '101596', 'title': '8-track tape', 'start_paragraph_id': 2, 'start_character': 38, 'end_paragraph_id': 2, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '101596', 'title': '8-track tape', 'start_paragraph_id': 2, 'start_character': 23, 'end_paragraph_id': 2, 'end_character': 645, 'bleu_score': 0.7154096216331061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7432904526683265603}, 'section': 'Section::::Abstract.'}]}]