| （単位：千円） | 純利益 | 前年比（％） |
|---|---|---|
| 2025/5 | 428,213 | -23.1% |
| 2024/5 | 556,936 | +43.7% |
| 2023/5 | 387,495 | -30.7% |
| 2022/5 | 559,357 | -22.8% |
| 2021/5 | 724,632 | +27.0% |
| 2020/5 | 570,524 | +32.5% |
| 2019/5 | 430,572 | -29.6% |
| 2018/5 | 611,999 | +27.7% |
| 2017/5 | 479,292 | +29.6% |
| 2016/5 | 369,934 | -27.0% |
| 2015/5 | 506,611 | +47.7% |
| 2014/5 | 342,980 | +60.6% |
| 2013/5 | 213,554 | -32.8% |
| 2012/5 | 317,843 | -186.8% |
| 2011/5 | -366,013 | - |