| （単位：百万円） | 純利益 | 前年比（％） |
|---|---|---|
| 2026/5 | -293 | -120.5% |
| 2025/5 | 1,428 | -9.6% |
| 2024/5 | 1,580 | +100.8% |
| 2023/5 | 787 | +12.8% |
| 2022/5 | 698 | -23.6% |
| 2021/5 | 914 | +66.2% |
| 2020/5 | 550 | -57.0% |
| 2019/5 | 1,279 | -32.3% |
| 2018/5 | 1,889 | +192.0% |
| 2017/5 | 647 | +26.9% |
| 2016/5 | 510 | -73.4% |
| 2015/5 | 1,920 | -13.6% |
| 2014/5 | 2,223 | +171.1% |
| 2013/5 | 820 | +31.0% |
| 2012/5 | 626 | -5.4% |
| 2011/5 | 662 | - |