Question: when did the ti 84 plus ce come out
[{'answer': 'Spring 2015', 'provenance': [{'wikipedia_id': '615169', 'title': 'TI-84 Plus series', 'start_paragraph_id': 12, 'start_character': 87, 'end_paragraph_id': 12, 'end_character': 98, 'bleu_score': 1.0, 'section': 'Section::::Versions.:TI-84 Plus CE and TI-84 Plus CE-T.\n'}]}, {'provenance': [{'wikipedia_id': '615169', 'title': 'TI-84 Plus series', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 1172, 'bleu_score': 0.7969263758071871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12291990338400209188}, 'section': 'Section::::Versions.:TI-84 Plus CE and TI-84 Plus CE-T.\n'}]}]