| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 35.53 | -0.9% |
| 2023/12 | 35.86 | -9.9% |
| 2022/12 | 39.8 | +49.9% |
| 2021/12 | 26.54 | +3.1% |
| 2020/12 | 25.75 | +1.3% |
| 2019/12 | 25.43 | -10.6% |
| 2018/12 | 28.45 | +15.7% |
| 2017/12 | 24.6 | -19.0% |
| 2016/12 | 30.36 | -13.5% |
| 2015/12 | 35.09 | +41.9% |
| 2014/12 | 24.74 | -7.0% |
| 2013/12 | 26.61 | -2.7% |
| 2012/12 | 27.33 | +74.9% |
| 2011/12 | 15.63 | -2.5% |
| 2010/12 | 16.02 | - |