| （単位：百万円） | 純利益 | 前年比（％） |
|---|---|---|
| 2026/5 | 821 | +2.9% |
| 2025/5 | 798 | -31.0% |
| 2024/5 | 1,157 | +133.8% |
| 2023/5 | 494 | -16.3% |
| 2022/5 | 591 | -4.2% |
| 2021/5 | 616 | -36.6% |
| 2020/5 | 972 | +82.4% |
| 2019/5 | 533 | +1112.9% |
| 2018/5 | 43 | -31.4% |
| 2017/5 | 64 | -64.3% |
| 2016/5 | 179 | +133.9% |
| 2015/5 | 76 | -40.7% |
| 2014/5 | 129 | -64.2% |
| 2013/5 | 361 | +64.6% |
| 2012/5 | 219 | -43.1% |
| 2011/5 | 386 | - |