| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | 14.5 | -4.6% |
| 2024/5 | 15.3 | -2.4% |
| 2023/5 | 15.6 | -7.5% |
| 2022/5 | 16.9 | +7.2% |
| 2021/5 | 15.8 | +6.9% |
| 2020/5 | 14.8 | +19.5% |
| 2019/5 | 12.3 | -9.0% |
| 2018/5 | 13.6 | -6.7% |
| 2017/5 | 14.5 | +0.2% |
| 2016/5 | 14.5 | +45.2% |
| 2015/5 | 10.0 | -32.6% |
| 2014/5 | 14.8 | +3.9% |
| 2013/5 | 14.3 | +7.5% |
| 2012/5 | 13.3 | -18.7% |
| 2011/5 | 16.3 | +9.5% |
| 2010/5 | 14.9 | - |