Question: what is the average annual income in puerto rico
[{'answer': '$19,370', 'provenance': [{'wikipedia_id': '19283249', 'title': 'Economy of Puerto Rico', 'start_paragraph_id': 141, 'start_character': 45, 'end_paragraph_id': 141, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Comparatives.:Income.\n'}]}, {'provenance': [{'wikipedia_id': '19283249', 'title': 'Economy of Puerto Rico', 'start_paragraph_id': 141, 'start_character': 0, 'end_paragraph_id': 141, 'end_character': 680, 'bleu_score': 0.9823771291847391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6414148686470534560}, 'section': 'Section::::Comparatives.:Income.\n'}]}]