| （単位：%） | 経常（税引前）利益率（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 30.3 | +41.5% |
| 2023/12 | 21.4 | -52.0% |
| 2022/12 | 44.6 | -32.7% |
| 2021/12 | 66.3 | +412.8% |
| 2020/12 | 12.9 | -59.6% |
| 2019/12 | 32.0 | -3.2% |
| 2018/12 | 33.0 | -9.9% |
| 2017/12 | 36.7 | -13.6% |
| 2016/12 | 42.4 | -6.7% |
| 2015/12 | 45.5 | -6.5% |
| 2014/12 | 48.6 | -12.9% |
| 2013/12 | 55.8 | -0.3% |
| 2012/11 | 56.0 | +1.2% |
| 2011/11 | 55.3 | +168.0% |
| 2010/11 | 20.6 | - |