Question: when did nj drinking age changed to 21
[{'answer': '1983', 'provenance': [{'wikipedia_id': '22795875', 'title': 'Alcohol laws of New Jersey', 'start_paragraph_id': 77, 'start_character': 590, 'end_paragraph_id': 77, 'end_character': 594, 'bleu_score': 1.0, 'section': "Section::::Legal drinking age.:History of New Jersey's drinking age.\n"}]}, {'provenance': [{'wikipedia_id': '22795875', 'title': 'Alcohol laws of New Jersey', 'start_paragraph_id': 77, 'start_character': 0, 'end_paragraph_id': 77, 'end_character': 919, 'bleu_score': 0.9666950091602231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7006495425754675306}, 'section': "Section::::Legal drinking age.:History of New Jersey's drinking age.\n"}]}]