| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 12.6 | +14.0% |
| 2025/5 | 11.0 | -5.7% |
| 2024/5 | 11.7 | +2.4% |
| 2023/5 | 11.4 | +10.1% |
| 2022/5 | 10.4 | +19.3% |
| 2021/5 | 8.7 | +12.4% |
| 2020/5 | 7.7 | +4.8% |
| 2019/5 | 7.4 | +6.1% |
| 2018/5 | 7.0 | -1.4% |
| 2017/5 | 7.1 | +11.1% |
| 2016/5 | 6.4 | +13.1% |
| 2015/5 | 5.6 | +29.8% |
| 2014/5 | 4.3 | +52.6% |
| 2013/5 | 2.8 | +121.8% |
| 2012/5 | 1.3 | +183.9% |
| 2011/5 | 0.5 | - |