Question: what is the median income in the us
[{'answer': '$61,372 in 2017', 'provenance': [{'wikipedia_id': '5755439', 'title': 'Household income in the United States', 'start_paragraph_id': 2, 'start_character': 180, 'end_paragraph_id': 2, 'end_character': 195, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5755439', 'title': 'Household income in the United States', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 391, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13075302827774699246}, 'section': 'Section::::Abstract.'}]}]