Question: what is the islamic population in the world
[{'answer': '1.8 billion', 'provenance': [{'wikipedia_id': '47408687', 'title': 'Islam by country', 'start_paragraph_id': 1, 'start_character': 114, 'end_paragraph_id': 1, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47408687', 'title': 'Islam by country', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 584, 'bleu_score': 0.7933835869661561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 613876263952063645}, 'section': 'Section::::Abstract.'}]}]