| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | 11.0 | -8.9% |
| 2024/5 | 12.0 | -19.1% |
| 2023/5 | 14.9 | -4.7% |
| 2022/5 | 15.6 | +18.6% |
| 2021/5 | 13.2 | +33.0% |
| 2020/5 | 9.9 | -28.2% |
| 2019/5 | 13.8 | -18.7% |
| 2018/5 | 17.0 | +28.4% |
| 2017/5 | 13.2 | +12.7% |
| 2016/5 | 11.7 | +40.8% |
| 2015/5 | 8.3 | +14.4% |
| 2014/5 | 7.3 | +60.6% |
| 2013/5 | 4.5 | -44.1% |
| 2012/5 | 8.1 | -22.3% |
| 2011/5 | 10.4 | - |