| （単位：千円） | 営業利益 | 前年比（％） |
|---|---|---|
| 2026/5 | -144,000 | -1268.5% |
| 2025/5 | 12,323 | -105.1% |
| 2024/5 | -242,524 | -144.6% |
| 2023/5 | 544,189 | +32.9% |
| 2022/5 | 409,518 | +93.2% |
| 2021/5 | 211,998 | -178.1% |
| 2020/5 | -271,469 | +215.5% |
| 2019/5 | -86,047 | -52.7% |
| 2018/5 | -181,854 | -149.9% |
| 2017/5 | 364,615 | +2.3% |
| 2016/5 | 356,293 | +358.2% |
| 2015/5 | 77,764 | -42.6% |
| 2014/5 | 135,546 | - |