Question: when was the last time tiger woods was number 1
[{'answer': '2009', 'provenance': [{'wikipedia_id': '10753786', 'title': 'List of world number one male golfers', 'start_paragraph_id': 1, 'start_character': 505, 'end_paragraph_id': 1, 'end_character': 509, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10753786', 'title': 'List of world number one male golfers', 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 509, 'bleu_score': 0.690132303464835, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12938629146898110151}, 'section': 'Section::::Abstract.'}]}]