| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 4.8 | -2.2% |
| 2025/5 | 4.9 | +26.7% |
| 2024/5 | 3.9 | -0.7% |
| 2023/5 | 3.9 | +102.8% |
| 2022/5 | 1.9 | -24.0% |
| 2021/5 | 2.6 | -27.1% |
| 2020/5 | 3.5 | -41.3% |
| 2019/5 | 6.0 | -14.3% |
| 2018/5 | 7.0 | +14.6% |
| 2017/5 | 6.1 | +12.5% |
| 2016/5 | 5.4 | -11.3% |
| 2015/5 | 6.1 | +15.3% |
| 2014/5 | 5.3 | +91.4% |
| 2013/5 | 2.8 | -55.0% |
| 2012/5 | 6.1 | +92.7% |
| 2011/5 | 3.2 | - |