| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 14.28 | -2.9% |
| 2024/5 | 14.71 | +1.8% |
| 2023/5 | 14.45 | -0.6% |
| 2022/5 | 14.54 | +25.0% |
| 2021/5 | 11.63 | -6.0% |
| 2020/5 | 12.36 | +18.5% |
| 2019/5 | 10.43 | -1.9% |
| 2018/5 | 10.63 | +0.5% |
| 2017/5 | 10.59 | -10.1% |
| 2016/5 | 11.77 | +54.6% |
| 2015/5 | 7.62 | -34.3% |
| 2014/5 | 11.59 | +59.7% |
| 2013/5 | 7.26 | +25.7% |
| 2012/5 | 5.77 | -15.8% |
| 2011/5 | 6.86 | - |