Question: what is the average college debt in the us
[{'answer': '$24,301', 'provenance': [{'wikipedia_id': '20595788', 'title': 'Student debt', 'start_paragraph_id': 21, 'start_character': 371, 'end_paragraph_id': 21, 'end_character': 378, 'bleu_score': 1.0, 'section': 'Section::::Statistics.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '20595788', 'title': 'Student debt', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 1638, 'bleu_score': 0.992713904185586, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14846728603661152883}, 'section': 'Section::::Statistics.:United States.\n'}]}]