| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 2.4 | +18.0% |
| 2025/5 | 2.0 | -66.1% |
| 2024/5 | 5.9 | +31.5% |
| 2023/5 | 4.5 | +17.9% |
| 2022/5 | 3.8 | -53.2% |
| 2021/5 | 8.2 | -5.4% |
| 2020/5 | 8.6 | +0.8% |
| 2019/5 | 8.6 | +29.7% |
| 2018/5 | 6.6 | +39.1% |
| 2017/5 | 4.8 | +4.1% |
| 2016/5 | 4.6 | +14.2% |
| 2015/5 | 4.0 | -47.0% |
| 2014/5 | 7.5 | -20.3% |
| 2013/5 | 9.5 | -16.9% |
| 2012/5 | 11.4 | -4.5% |
| 2011/5 | 11.9 | - |