| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 11.5 | -41.5% |
| 2023/12 | 19.7 | +73.7% |
| 2022/12 | 11.3 | -6.2% |
| 2021/12 | 12.1 | -34.7% |
| 2020/12 | 18.5 | -41.4% |
| 2019/12 | 31.6 | -20.3% |
| 2018/12 | 39.6 | -33.9% |
| 2017/12 | 60.0 | -32.1% |
| 2016/12 | 88.3 | +8.2% |
| 2015/12 | 81.6 | +28.5% |
| 2014/12 | 63.5 | +106.9% |
| 2013/12 | 30.7 | -25.0% |
| 2012/12 | 40.9 | -5.7% |
| 2011/12 | 43.4 | +3.4% |
| 2010/12 | 42.0 | - |