| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 31.9 | - |
| 2022/12 | 13.1 | -3656.2% |
| 2021/12 | -0.4 | -64.0% |
| 2020/12 | -1.0 | -104.0% |
| 2019/12 | 25.4 | +312.0% |
| 2018/12 | 6.2 | -52.5% |
| 2017/12 | 13.0 | -1114.6% |
| 2016/12 | -1.3 | -104.9% |
| 2015/12 | 26.1 | +1400.2% |
| 2014/12 | 1.7 | -91.3% |
| 2013/12 | 20.0 | -7.1% |
| 2012/12 | 21.6 | -37.7% |
| 2011/12 | 34.6 | -10.9% |
| 2010/12 | 38.8 | - |