| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 6.5 | +13.7% |
| 2025/5 | 5.7 | +36.2% |
| 2024/5 | 4.2 | -2.1% |
| 2023/5 | 4.3 | +16.2% |
| 2022/5 | 3.7 | +4.0% |
| 2021/5 | 3.5 | +801.7% |
| 2020/5 | 0.4 | -89.5% |
| 2019/5 | 3.7 | -16.7% |
| 2018/5 | 4.5 | +12.0% |
| 2017/5 | 4.0 | +65.5% |
| 2016/5 | 2.4 | -35.2% |
| 2015/5 | 3.7 | +3.6% |
| 2014/5 | 3.6 | -44.1% |
| 2013/5 | 6.5 | +62.4% |
| 2012/5 | 4.0 | +9.8% |
| 2011/5 | 3.6 | - |