Question: what is the population of the bay area in california
[{'answer': 'approximately 7.68 million people'}, {'provenance': [{'wikipedia_id': '19283806', 'title': 'San Francisco Bay Area', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 728, 'bleu_score': 0.913963915243145, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15904522931086107692}, 'section': 'Section::::Abstract.'}]}]