| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/9 | 20.99 | -13.7% |
| 2023/9 | 24.33 | -11.4% |
| 2022/9 | 27.45 | -4.6% |
| 2021/9 | 28.78 | +4.7% |
| 2020/9 | 27.49 | +319.1% |
| 2019/9 | 6.56 | -3.8% |
| 2018/9 | 6.82 | -15.5% |
| 2017/9 | 8.07 | -27.8% |
| 2016/9 | 11.18 | +3.7% |
| 2015/9 | 10.79 | +10.0% |
| 2014/9 | 9.81 | -12.5% |
| 2013/9 | 11.21 | -30.1% |
| 2012/9 | 16.05 | +41.3% |
| 2011/9 | 11.36 | -2.3% |
| 2010/9 | 11.63 | - |