Question: last time canadian dollar was at par with us
[{'answer': '2007', 'provenance': [{'wikipedia_id': '101846', 'title': 'Canadian dollar', 'start_paragraph_id': 62, 'start_character': 68, 'end_paragraph_id': 62, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Value.\n'}]}, {'provenance': [{'wikipedia_id': '101846', 'title': 'Canadian dollar', 'start_paragraph_id': 65, 'start_character': 0, 'end_paragraph_id': 65, 'end_character': 361, 'bleu_score': 0.594757188024368, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17202416770940886635}, 'section': 'Section::::Value.\n'}]}]