| （単位：%） | 2017/3 | 2018/3 | 2019/3 | 2020/3 | 2021/3 | 2022/3 | 2023/3 | 2024/3 | 2025/3 |
|---|---|---|---|---|---|---|---|---|---|
| 売上高 | 329,476 | 327,600 | 306,494 | 306,236 | 291,729 | 286,979 | 312,983 | 358,303 | 399,103 |
| 売上成長率（％） | - | -4.7 | -1.6 | 9.1 | 14.5 | 11.4 | |||
| 営業費用 | 1,127 | 1,468 | 1,518 | 1,390 | 1,293 | 1,230 | 1,222 | 1,235 | 1,330 |
| 営業利益 | 56,949 | 32,928 | 31,668 | 27,778 | 23,522 | 19,571 | 21,708 | 28,314 | 113,586 |
| 営業利益率 (%) | 8.1 | 6.8 | 6.9 | 7.9 | 28.5 | ||||
| 経常（税引前）利益 | 97,168 | 98,022 | 80,373 | 71,354 | 41,405 | 82,257 | 79,870 | 77,004 | 122,764 |
| 経常（税引前）利益率（％） | 29.5 | 29.9 | 26.2 | 23.3 | 14.2 | 28.7 | 25.5 | 21.5 | 30.8 |
| 法人税等合計 | 29,089 | 30,335 | 24,847 | 21,834 | 10,303 | 24,238 | 24,327 | 24,208 | 35,847 |
| 実効税率（％） | 24.9 | 29.5 | 30.5 | 31.4 | 29.2 | ||||
| 純利益 | 127,436 | 66,966 | 54,467 | 46,807 | 26,011 | 54,345 | 56,205 | 67,183 | 83,071 |
| 純利益率（％） | 8.9 | 18.9 | 18.0 | 18.8 | 20.8 | ||||
| 一株あたり利益 | 98.08 | 52.36 | 43.46 | 38.38 | 20.99 | 44.67 | 47.39 | 57.16 | 71.63 |
| 希薄化後一株あたり利益 | 98.01 | 52.32 | 43.44 | 38.37 | 20.99 | 44.67 | 47.39 | 57.16 | - |
| 配当性向（%） | - | - | - | 81.0 | 40.3 | 40.1 | 40.2 | - | |
| 一株あたり配当金 | - | - | - | 16 | 17 | 18 | 19 | 23 | 29 |
| EBITDA | 37,035 | 33,295 | 34,860 | 41,582 | 126,360 | ||||
| EBITDAマージン（％） | 12.7 | 11.6 | 11.1 | 11.6 | 31.7 |