| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 14.27 | +17.8% |
| 2024/5 | 12.11 | +3.5% |
| 2023/5 | 11.7 | -0.9% |
| 2022/5 | 11.8 | +42.6% |
| 2021/5 | 8.27 | -18.8% |
| 2020/5 | 10.19 | -10.8% |
| 2019/5 | 11.42 | -10.4% |
| 2018/5 | 12.74 | +15.0% |
| 2017/5 | 11.07 | -2.6% |
| 2016/5 | 11.37 | +1.3% |
| 2015/5 | 11.22 | +15.7% |
| 2014/5 | 9.69 | +54.0% |
| 2013/5 | 6.29 | -2.7% |
| 2012/5 | 6.47 | -24.5% |
| 2011/5 | 8.57 | - |