| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 9.0 | +9.3% |
| 2025/5 | 8.2 | +24.9% |
| 2024/5 | 6.6 | +45.1% |
| 2023/5 | 4.5 | -56.4% |
| 2022/5 | 10.4 | -22.0% |
| 2021/5 | 13.4 | +50.8% |
| 2020/5 | 8.9 | +28.6% |
| 2019/5 | 6.9 | +4.4% |
| 2018/5 | 6.6 | -6.4% |
| 2017/5 | 7.1 | +51.2% |
| 2016/5 | 4.7 | -22.1% |
| 2015/5 | 6.0 | +4.8% |
| 2014/5 | 5.7 | +9.7% |
| 2013/5 | 5.2 | +30.5% |
| 2012/5 | 4.0 | -23.1% |
| 2011/5 | 5.2 | - |