| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 28.4 | -29.6% |
| 2023/12 | 40.4 | +74.2% |
| 2022/12 | 23.2 | +18.8% |
| 2021/12 | 19.5 | +443.6% |
| 2020/12 | 3.6 | -72.3% |
| 2019/12 | 13.0 | +240.5% |
| 2018/12 | 3.8 | -42.8% |
| 2017/12 | 6.7 | -233.2% |
| 2016/12 | -5.0 | -78.5% |
| 2015/12 | -23.3 | -149.6% |
| 2014/12 | 46.9 | +198.1% |
| 2013/12 | 15.7 | -8.6% |
| 2012/12 | 17.2 | +13.6% |
| 2011/12 | 15.2 | - |