Question: when did new zealand change to decimal currency
[{'answer': '1963', 'provenance': [{'wikipedia_id': '161585', 'title': 'New Zealand dollar', 'start_paragraph_id': 7, 'start_character': 262, 'end_paragraph_id': 7, 'end_character': 266, 'bleu_score': 1.0, 'section': 'Section::::History.:Introduction.\n'}]}, {'provenance': [{'wikipedia_id': '161585', 'title': 'New Zealand dollar', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 771, 'bleu_score': 0.9845548242372031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9566493703159694821}, 'section': 'Section::::History.:Introduction.\n'}]}]