| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | -0.86 | -92.1% |
| 2024/5 | -10.91 | -169.1% |
| 2023/5 | 15.79 | -1.6% |
| 2022/5 | 16.05 | +128.0% |
| 2021/5 | 7.04 | -137.5% |
| 2020/5 | -18.77 | +307.9% |
| 2019/5 | -4.6 | -51.8% |
| 2018/5 | -9.55 | -268.3% |
| 2017/5 | 5.67 | -33.5% |
| 2016/5 | 8.53 | +376.7% |
| 2015/5 | 1.79 | -79.7% |
| 2014/5 | 8.82 | +133.6% |
| 2013/5 | 3.77 | -10.7% |
| 2012/5 | 4.22 | -39.7% |
| 2011/5 | 7.01 | - |