| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 47.57 | +29.8% |
| 2023/12 | 36.64 | -35.4% |
| 2022/12 | 56.72 | +35.0% |
| 2021/12 | 42.02 | +3.1% |
| 2020/12 | 40.74 | -24.9% |
| 2019/12 | 54.25 | -10.0% |
| 2018/12 | 60.25 | +2.7% |
| 2017/12 | 58.66 | -2.9% |
| 2016/12 | 60.38 | +6.4% |
| 2015/12 | 56.75 | +14.1% |
| 2014/12 | 49.72 | -6.5% |
| 2013/12 | 53.2 | +33.6% |
| 2012/12 | 39.81 | -24.1% |
| 2011/12 | 52.45 | -3.2% |
| 2010/12 | 54.17 | - |