| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 2.4 | -90.5% |
| 2023/12 | 25.3 | +18.7% |
| 2022/12 | 21.3 | -29.7% |
| 2021/12 | 30.3 | +348.5% |
| 2020/12 | 6.8 | -70.6% |
| 2019/12 | 23.0 | -34.8% |
| 2018/12 | 35.2 | -32.0% |
| 2017/12 | 51.8 | -7.9% |
| 2016/12 | 56.3 | -15.2% |
| 2015/12 | 66.4 | +11.2% |
| 2014/12 | 59.7 | +58.9% |
| 2013/12 | 37.6 | +0.9% |
| 2012/12 | 37.2 | -14.5% |
| 2011/12 | 43.5 | -11.6% |
| 2010/12 | 49.2 | - |