| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 1.0 | +380.3% |
| 2025/5 | 0.2 | -86.0% |
| 2024/5 | 1.5 | -44.4% |
| 2023/5 | 2.8 | -6.4% |
| 2022/5 | 2.9 | +19.4% |
| 2021/5 | 2.5 | +22.8% |
| 2020/5 | 2.0 | +75.8% |
| 2019/5 | 1.1 | -43.0% |
| 2018/5 | 2.0 | +227.1% |
| 2017/5 | 0.6 | -55.0% |
| 2016/5 | 1.4 | -46.2% |
| 2015/5 | 2.5 | -24.1% |
| 2014/5 | 3.3 | -9.6% |
| 2013/5 | 3.7 | -25.9% |
| 2012/5 | 5.0 | -0.8% |
| 2011/5 | 5.0 | - |