| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 16.7 | -3.8% |
| 2023/12 | 17.37 | -18.4% |
| 2022/12 | 21.3 | -22.2% |
| 2021/12 | 27.38 | -11.1% |
| 2020/12 | 30.81 | +5.8% |
| 2019/12 | 29.14 | -2.0% |
| 2018/12 | 29.73 | -4.4% |
| 2017/12 | 31.11 | -1.4% |
| 2016/12 | 31.57 | -8.1% |
| 2015/12 | 34.35 | -3.6% |
| 2014/12 | 35.63 | +119.5% |
| 2013/12 | 16.23 | +54.0% |
| 2012/12 | 10.54 | +2.1% |
| 2011/12 | 10.33 | -16.4% |
| 2010/12 | 12.36 | - |