| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | 2.6 | +1.3% |
| 2024/5 | 2.5 | -17.1% |
| 2023/5 | 3.1 | -2.2% |
| 2022/5 | 3.1 | +8.3% |
| 2021/5 | 2.9 | +4.8% |
| 2020/5 | 2.8 | -14.4% |
| 2019/5 | 3.2 | +1.3% |
| 2018/5 | 3.2 | -12.5% |
| 2017/5 | 3.7 | -6.8% |
| 2016/5 | 3.9 | +1.5% |
| 2015/5 | 3.9 | +13.8% |
| 2014/5 | 3.4 | +23.9% |
| 2013/5 | 2.7 | -12.5% |
| 2012/5 | 3.1 | -10.4% |
| 2011/5 | 3.5 | -3.0% |
| 2010/5 | 3.6 | - |