| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 56.9 | +27.4% |
| 2023/12 | 44.6 | +51.6% |
| 2022/12 | 29.4 | +100.3% |
| 2021/12 | 14.7 | -44.2% |
| 2020/12 | 26.3 | +763.6% |
| 2019/12 | 3.1 | -91.7% |
| 2018/12 | 36.8 | -4.2% |
| 2017/12 | 38.4 | -54.7% |
| 2016/12 | 84.9 | +167.3% |
| 2015/12 | 31.8 | +0.2% |
| 2014/12 | 31.7 | +11.7% |
| 2013/12 | 28.4 | +7.8% |
| 2012/12 | 26.3 | +12.2% |
| 2011/12 | 23.5 | -0.2% |
| 2010/12 | 23.5 | - |