| （単位：千円） | 純利益 | 前年比（％） |
|---|---|---|
| 2025/5 | 689,068 | +47.3% |
| 2024/5 | 467,894 | +3.3% |
| 2023/5 | 452,926 | +193.7% |
| 2022/5 | 154,231 | -12.3% |
| 2021/5 | 175,795 | -35.5% |
| 2020/5 | 272,534 | -36.8% |
| 2019/5 | 431,271 | -18.2% |
| 2018/5 | 527,149 | +46.2% |
| 2017/5 | 360,687 | +43.1% |
| 2016/5 | 251,982 | +17.8% |
| 2015/5 | 213,839 | +30.1% |
| 2014/5 | 164,324 | -1.5% |
| 2013/5 | 166,792 | -252.7% |
| 2012/5 | -109,210 | -853.1% |
| 2011/5 | 14,501 | - |