| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2025/5 | 1.6 | -122.9% |
| 2024/5 | -6.9 | -328.9% |
| 2023/5 | 3.0 | -54.6% |
| 2022/5 | 6.6 | -26.3% |
| 2021/5 | 9.0 | +8.9% |
| 2020/5 | 8.3 | -31.5% |
| 2019/5 | 12.1 | -7.6% |
| 2018/5 | 13.0 | +94.3% |
| 2017/5 | 6.7 | +44.5% |
| 2016/5 | 4.6 | +46.8% |
| 2015/5 | 3.2 | +105.4% |
| 2014/5 | 1.5 | +60.4% |
| 2013/5 | 1.0 | -157.0% |
| 2012/5 | -1.7 | -346.0% |
| 2011/5 | 0.7 | +10.5% |
| 2010/5 | 0.6 | - |