{"updated": "2026-09-19", "item": "布団", "unit": "1枚", "item_code": "4211", "source": "総務省統計局 小売物価統計調査（動向編）", "source_url": "https://www.stat.go.jp/data/kouri/", "license": "CC BY 4.0（数値）", "method": "81市の調査価格の月ごとの中央値。40市以上で値がある月だけ", "comparable": true, "ratio": 0.913, "from": {"month": "2020-01", "yen": 9546}, "to": {"month": "2026-07", "yen": 8712}, "months": [{"month": "2020-01", "yen": 9546}, {"month": "2020-02", "yen": 9513}, {"month": "2020-03", "yen": 9423}, {"month": "2020-04", "yen": 9268}, {"month": "2020-05", "yen": 9379}, {"month": "2020-06", "yen": 9419}, {"month": "2020-07", "yen": 9379}, {"month": "2020-08", "yen": 9084}, {"month": "2020-09", "yen": 9230}, {"month": "2020-10", "yen": 9379}, {"month": "2020-11", "yen": 9379}, {"month": "2020-12", "yen": 9287}, {"month": "2021-01", "yen": 9287}, {"month": "2021-02", "yen": 9346}, {"month": "2021-03", "yen": 9294}, {"month": "2021-04", "yen": 9379}, {"month": "2021-05", "yen": 9559}, {"month": "2021-06", "yen": 9559}, {"month": "2021-07", "yen": 9559}, {"month": "2021-08", "yen": 9229}, {"month": "2021-09", "yen": 9455}, {"month": "2021-10", "yen": 9680}, {"month": "2021-11", "yen": 9618}, {"month": "2021-12", "yen": 9748}, {"month": "2022-01", "yen": 9753}, {"month": "2022-02", "yen": 9812}, {"month": "2022-03", "yen": 9753}, {"month": "2022-04", "yen": 9753}, {"month": "2022-05", "yen": 9819}, {"month": "2022-06", "yen": 9919}, {"month": "2022-07", "yen": 9952}, {"month": "2022-08", "yen": 9819}, {"month": "2022-09", "yen": 9964}, {"month": "2022-10", "yen": 10003}, {"month": "2022-11", "yen": 10093}, {"month": "2022-12", "yen": 10116}, {"month": "2023-01", "yen": 10403}, {"month": "2023-02", "yen": 10660}, {"month": "2023-03", "yen": 10660}, {"month": "2023-04", "yen": 10792}, {"month": "2023-05", "yen": 10792}, {"month": "2023-06", "yen": 10893}, {"month": "2023-07", "yen": 11062}, {"month": "2023-08", "yen": 11440}, {"month": "2023-09", "yen": 11983}, {"month": "2023-10", "yen": 11908}, {"month": "2023-11", "yen": 11756}, {"month": "2023-12", "yen": 11757}, {"month": "2024-01", "yen": 11843}, {"month": "2024-02", "yen": 12040}, {"month": "2024-03", "yen": 11688}, {"month": "2024-04", "yen": 11927}, {"month": "2024-05", "yen": 11927}, {"month": "2024-06", "yen": 12019}, {"month": "2024-07", "yen": 11793}, {"month": "2024-08", "yen": 11429}, {"month": "2024-09", "yen": 11936}, {"month": "2024-10", "yen": 12110}, {"month": "2024-11", "yen": 12349}, {"month": "2024-12", "yen": 11979}, {"month": "2025-01", "yen": 11979}, {"month": "2025-02", "yen": 11979}, {"month": "2025-03", "yen": 11979}, {"month": "2025-04", "yen": 11843}, {"month": "2025-05", "yen": 11843}, {"month": "2025-06", "yen": 11843}, {"month": "2025-07", "yen": 11843}, {"month": "2025-08", "yen": 11651}, {"month": "2025-09", "yen": 11920}, {"month": "2025-10", "yen": 8705}, {"month": "2025-11", "yen": 8679}, {"month": "2025-12", "yen": 8650}, {"month": "2026-01", "yen": 8772}, {"month": "2026-02", "yen": 8772}, {"month": "2026-03", "yen": 8772}, {"month": "2026-04", "yen": 8778}, {"month": "2026-05", "yen": 8719}, {"month": "2026-06", "yen": 8712}, {"month": "2026-07", "yen": 8712}]}