{"updated": "2026-09-19", "item": "子供用Ｔシャツ(長袖)", "unit": "1枚", "item_code": "5243", "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": 1.065, "from": {"month": "2020-01", "yen": 1296}, "to": {"month": "2026-07", "yen": 1380}, "months": [{"month": "2020-01", "yen": 1296}, {"month": "2020-02", "yen": 1304}, {"month": "2020-03", "yen": 1308}, {"month": "2020-09", "yen": 1500}, {"month": "2020-10", "yen": 1434}, {"month": "2020-11", "yen": 1349}, {"month": "2020-12", "yen": 1306}, {"month": "2021-01", "yen": 1305}, {"month": "2021-02", "yen": 1342}, {"month": "2021-03", "yen": 1256}, {"month": "2021-09", "yen": 1423}, {"month": "2021-10", "yen": 1309}, {"month": "2021-11", "yen": 1309}, {"month": "2021-12", "yen": 1236}, {"month": "2022-01", "yen": 1192}, {"month": "2022-02", "yen": 1342}, {"month": "2022-03", "yen": 1368}, {"month": "2022-09", "yen": 1467}, {"month": "2022-10", "yen": 1415}, {"month": "2022-11", "yen": 1294}, {"month": "2022-12", "yen": 1211}, {"month": "2023-01", "yen": 1261}, {"month": "2023-02", "yen": 1232}, {"month": "2023-03", "yen": 1302}, {"month": "2023-09", "yen": 1645}, {"month": "2023-10", "yen": 1513}, {"month": "2023-11", "yen": 1499}, {"month": "2023-12", "yen": 1485}, {"month": "2024-01", "yen": 1496}, {"month": "2024-02", "yen": 1542}, {"month": "2024-03", "yen": 1459}, {"month": "2024-09", "yen": 1569}, {"month": "2024-10", "yen": 1587}, {"month": "2024-11", "yen": 1533}, {"month": "2024-12", "yen": 1371}, {"month": "2025-01", "yen": 1349}, {"month": "2025-02", "yen": 1393}, {"month": "2025-03", "yen": 1495}, {"month": "2025-09", "yen": 1630}, {"month": "2025-10", "yen": 1492}, {"month": "2025-11", "yen": 1567}, {"month": "2025-12", "yen": 1448}, {"month": "2026-01", "yen": 1305}, {"month": "2026-02", "yen": 1399}, {"month": "2026-03", "yen": 1380}]}