Question: when did 500 bills go out of circulation
[{'answer': '2016', 'provenance': [{'wikipedia_id': '25645761', 'title': '500 euro note', 'start_paragraph_id': 46, 'start_character': 45, 'end_paragraph_id': 46, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::End of production and issuance.\n'}]}]