Question: what percentage of the united states lives in california
[{'answer': 'more than 12 percent', 'provenance': [{'wikipedia_id': '8279916', 'title': 'Demographics of California', 'start_paragraph_id': 4, 'start_character': 66, 'end_paragraph_id': 4, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Population.\n'}]}, {'provenance': [{'wikipedia_id': '8279916', 'title': 'Demographics of California', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 595, 'bleu_score': 0.9792717993254391, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5153133083696887221}, 'section': 'Section::::Population.\n'}]}]