| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 2.74 | +13.1% |
| 2024/5 | 2.42 | -267.4% |
| 2023/5 | -1.45 | -26.9% |
| 2022/5 | -1.98 | -156.2% |
| 2021/5 | 3.52 | +4.2% |
| 2020/5 | 3.37 | +35.8% |
| 2019/5 | 2.49 | -49.3% |
| 2018/5 | 4.91 | +35.1% |
| 2017/5 | 3.63 | +176.8% |
| 2016/5 | 1.31 | +139.7% |
| 2015/5 | 0.55 | -54.1% |
| 2014/5 | 1.19 | -37.1% |
| 2013/5 | 1.9 | -32.9% |
| 2012/5 | 2.83 | +68.9% |
| 2011/5 | 1.67 | - |