| （単位：千円） | 営業利益 | 前年比（％） |
|---|---|---|
| 2026/5 | 919,000 | -198.3% |
| 2025/5 | -935,000 | +2.2% |
| 2024/5 | -915,000 | -803.8% |
| 2023/5 | 130,000 | -63.0% |
| 2022/5 | 351,000 | +1110.3% |
| 2021/5 | 29,000 | -110.1% |
| 2020/5 | -286,000 | -164.0% |
| 2019/5 | 447,000 | +20.5% |
| 2018/5 | 371,000 | +72.6% |
| 2017/5 | 215,000 | -179.3% |
| 2016/5 | -271,000 | -135.6% |
| 2015/5 | 761,000 | -2156.8% |
| 2014/5 | -37,000 | - |