| （単位：千円） | 経常（税引前）利益 | 前年比（％） |
|---|---|---|
| 2025/5 | 774,343 | +21.7% |
| 2024/5 | 636,312 | +22.8% |
| 2023/5 | 518,022 | +55.0% |
| 2022/5 | 334,259 | -56.2% |
| 2021/5 | 763,673 | +86.9% |
| 2020/5 | 408,579 | +29.3% |
| 2019/5 | 315,998 | +32.2% |
| 2018/5 | 238,960 | +701.7% |
| 2017/5 | 29,806 | -78.2% |
| 2016/5 | 136,863 | -44.2% |
| 2015/5 | 245,251 | -20.2% |
| 2014/5 | 307,369 | +85.4% |
| 2013/5 | 165,795 | +25.3% |
| 2012/5 | 132,350 | +998.3% |
| 2011/5 | 12,050 | - |