| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 0.4 | -62.3% |
| 2025/5 | 1.1 | -30.5% |
| 2024/5 | 1.6 | +28.4% |
| 2023/5 | 1.3 | +202.4% |
| 2022/5 | 0.4 | -42.8% |
| 2021/5 | 0.7 | -6.4% |
| 2020/5 | 0.8 | -30.3% |
| 2019/5 | 1.1 | -27.3% |
| 2018/5 | 1.5 | +6.3% |
| 2017/5 | 1.5 | -6.1% |
| 2016/5 | 1.5 | +38.5% |
| 2015/5 | 1.1 | +201.1% |
| 2014/5 | 0.4 | -37.6% |
| 2013/5 | 0.6 | -49.9% |
| 2012/5 | 1.2 | +43.9% |
| 2011/5 | 0.8 | - |