| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/9 | 26.97 | -11.7% |
| 2023/9 | 30.55 | +0.2% |
| 2022/9 | 30.48 | -9.7% |
| 2021/9 | 33.75 | -8.3% |
| 2020/9 | 36.79 | +14.5% |
| 2019/9 | 32.12 | +14.5% |
| 2018/9 | 28.04 | -24.8% |
| 2017/9 | 37.27 | -15.4% |
| 2016/9 | 44.07 | +8.7% |
| 2015/9 | 40.52 | -5.3% |
| 2014/9 | 42.8 | +19.1% |
| 2013/9 | 35.94 | -22.7% |
| 2012/9 | 46.52 | +30.5% |
| 2011/9 | 35.65 | +4.2% |
| 2010/9 | 34.2 | - |