| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | 13.2 | +5.6% |
| 2024/5 | 12.5 | -21.2% |
| 2023/5 | 15.9 | -4.0% |
| 2022/5 | 16.6 | +13.9% |
| 2021/5 | 14.6 | +11.3% |
| 2020/5 | 13.1 | -1.4% |
| 2019/5 | 13.3 | +5.2% |
| 2018/5 | 12.6 | -5.4% |
| 2017/5 | 13.3 | +3.8% |
| 2016/5 | 12.9 | +25.5% |
| 2015/5 | 10.2 | +41.3% |
| 2014/5 | 7.2 | +2.3% |
| 2013/5 | 7.1 | +14.9% |
| 2012/5 | 6.2 | -14.7% |
| 2011/5 | 7.2 | +83.3% |
| 2010/5 | 3.9 | - |