| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2026/5 | 12.4 | +29.2% |
| 2025/5 | 9.6 | +4.0% |
| 2024/5 | 9.2 | +13.7% |
| 2023/5 | 8.1 | +33.3% |
| 2022/5 | 6.1 | -58.5% |
| 2021/5 | 14.6 | +63.4% |
| 2020/5 | 8.9 | +18.3% |
| 2019/5 | 7.6 | +40.3% |
| 2018/5 | 5.4 | +740.0% |
| 2017/5 | 0.6 | -78.6% |
| 2016/5 | 3.0 | -45.1% |
| 2015/5 | 5.5 | -27.9% |
| 2014/5 | 7.6 | +58.0% |
| 2013/5 | 4.8 | +22.1% |
| 2012/5 | 3.9 | +1023.8% |
| 2011/5 | 0.3 | - |