| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 39.01 | -1.6% |
| 2023/12 | 39.65 | -26.2% |
| 2022/12 | 53.7 | -14.4% |
| 2021/12 | 62.71 | -8.8% |
| 2020/12 | 68.72 | +2.2% |
| 2019/12 | 67.27 | -18.5% |
| 2018/12 | 82.51 | +19.2% |
| 2017/12 | 69.2 | +69.1% |
| 2016/12 | 40.93 | -0.0% |
| 2015/12 | 40.95 | -7.1% |
| 2014/12 | 44.1 | +42.1% |
| 2013/12 | 31.04 | -0.2% |
| 2012/12 | 31.09 | +77.7% |
| 2011/12 | 17.5 | -50.4% |
| 2010/12 | 35.25 | - |