| （単位：百万円） | 純利益 | 前年比（％） |
|---|---|---|
| 2026/5 | 1,117 | -24.4% |
| 2025/5 | 1,478 | +102.3% |
| 2024/5 | 730 | +7.0% |
| 2023/5 | 682 | +28.1% |
| 2022/5 | 532 | -2.1% |
| 2021/5 | 544 | -2.6% |
| 2020/5 | 558 | +11.1% |
| 2019/5 | 502 | +60.1% |
| 2018/5 | 314 | +2.5% |
| 2017/5 | 306 | +0.4% |
| 2016/5 | 304 | -1.7% |
| 2015/5 | 310 | +28.6% |
| 2014/5 | 241 | +15.7% |
| 2013/5 | 208 | +37.4% |
| 2012/5 | 151 | -22.0% |
| 2011/5 | 194 | - |