| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | -76.52 | +50.3% |
| 2024/5 | -50.9 | +64.6% |
| 2023/5 | -30.93 | +54.2% |
| 2022/5 | -20.06 | +165.1% |
| 2021/5 | -7.57 | -266.8% |
| 2020/5 | 4.54 | +518.9% |
| 2019/5 | 0.73 | -90.7% |
| 2018/5 | 7.86 | -33.4% |
| 2017/5 | 11.8 | -153.9% |
| 2016/5 | -21.88 | -19.7% |
| 2015/5 | -27.23 | -846.9% |
| 2014/5 | 3.65 | -51.2% |
| 2013/5 | 7.47 | +127.4% |
| 2012/5 | 3.29 | -74.0% |
| 2011/5 | 12.63 | - |