| （単位：百万円） | 営業利益 | 前年比（％） |
|---|---|---|
| 2026/5 | 7,150 | +208.5% |
| 2025/5 | 2,318 | -124.6% |
| 2024/5 | -9,404 | -309.6% |
| 2023/5 | 4,487 | -43.6% |
| 2022/5 | 7,957 | -24.7% |
| 2021/5 | 10,564 | +1.9% |
| 2020/5 | 10,367 | -28.9% |
| 2019/5 | 14,576 | -7.0% |
| 2018/5 | 15,669 | +107.3% |
| 2017/5 | 7,559 | +24.4% |
| 2016/5 | 6,077 | +90.4% |
| 2015/5 | 3,192 | +105.3% |
| 2014/5 | 1,555 | +137.4% |
| 2013/5 | 655 | - |