| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 1.1 | -61.1% |
| 2025/5 | 2.7 | -85.5% |
| 2024/5 | 18.9 | +26.7% |
| 2023/5 | 15.0 | +40.8% |
| 2022/5 | 10.6 | -16.4% |
| 2021/5 | 12.7 | +85.3% |
| 2020/5 | 6.9 | -42.0% |
| 2019/5 | 11.8 | -34.8% |
| 2018/5 | 18.1 | +11.1% |
| 2017/5 | 16.3 | +47.9% |
| 2016/5 | 11.0 | -36.6% |
| 2015/5 | 17.4 | -4.2% |
| 2014/5 | 18.2 | +20.8% |
| 2013/5 | 15.1 | -11.5% |
| 2012/5 | 17.0 | - |