| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | -34.16 | +77.2% |
| 2024/5 | -19.27 | +12.2% |
| 2023/5 | -17.18 | -2963.4% |
| 2022/5 | 0.6 | -104.2% |
| 2021/5 | -14.24 | +3464.1% |
| 2020/5 | -0.4 | -129.1% |
| 2019/5 | 1.37 | +267.9% |
| 2018/5 | 0.37 | -76.7% |
| 2017/5 | 1.6 | +22.4% |
| 2016/5 | 1.31 | +459.3% |
| 2015/5 | 0.23 | -46.1% |
| 2014/5 | 0.43 | -124.8% |
| 2013/5 | -1.75 | -80.3% |
| 2012/5 | -8.88 | +2.3% |
| 2011/5 | -8.69 | - |