| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 10.85 | -12.2% |
| 2024/5 | 12.36 | -0.0% |
| 2023/5 | 12.36 | -3.7% |
| 2022/5 | 12.83 | +8.7% |
| 2021/5 | 11.81 | +12.0% |
| 2020/5 | 10.54 | +61.4% |
| 2019/5 | 6.53 | +2.9% |
| 2018/5 | 6.35 | +15.8% |
| 2017/5 | 5.48 | -4.7% |
| 2016/5 | 5.75 | -19.7% |
| 2015/5 | 7.17 | -20.1% |
| 2014/5 | 8.97 | +82.2% |
| 2013/5 | 4.92 | +1221.6% |
| 2012/5 | 0.37 | -108.0% |
| 2011/5 | -4.63 | - |