Question: when did california become the most populous state
[{'answer': '1962', 'provenance': [{'wikipedia_id': '8279916', 'title': 'Demographics of California', 'start_paragraph_id': 3, 'start_character': 367, 'end_paragraph_id': 3, 'end_character': 371, 'bleu_score': 1.0, 'section': 'Section::::Population.\n'}]}, {'provenance': [{'wikipedia_id': '8279916', 'title': 'Demographics of California', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 933, 'bleu_score': 0.8920601912107, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 950799234804589842}, 'section': 'Section::::Population.\n'}]}]