| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | -7.3 | -138.7% |
| 2024/5 | 18.8 | -16.4% |
| 2023/5 | 22.5 | +19.9% |
| 2022/5 | 18.8 | -241.4% |
| 2021/5 | -13.3 | +7.0% |
| 2020/5 | -12.4 | -49.8% |
| 2019/5 | -24.7 | -1706.6% |
| 2018/5 | 1.5 | -105.2% |
| 2017/5 | -29.8 | -36.3% |
| 2016/5 | -46.7 | -29.2% |
| 2015/5 | -66.0 | -3292.5% |
| 2014/5 | 2.1 | -110.1% |
| 2013/5 | -20.6 | -6.3% |
| 2012/5 | -21.9 | - |