Where it comes from
Our calculation from other figures in the trainer’s notes.
Show the working
- 全国 28 都道府県で 288 枚設置(2023 年3月 20 日時点) (288 installed in 28 prefectures as of 2023-03-20.) From a search-result snippet of a Yokohama city PDF
- document host unreachable, NOT read