| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 61.46 | -20.8% |
| 2023/12 | 77.56 | -1.0% |
| 2022/12 | 78.38 | +4.5% |
| 2021/12 | 75.0 | -4.5% |
| 2020/12 | 78.53 | -17.9% |
| 2019/12 | 95.71 | -22.8% |
| 2018/12 | 124.02 | -31.1% |
| 2017/12 | 179.95 | -15.9% |
| 2016/12 | 213.95 | +96.8% |
| 2015/12 | 108.72 | -17.1% |
| 2014/12 | 131.08 | -0.1% |
| 2013/12 | 131.23 | -20.3% |
| 2012/12 | 164.62 | -15.7% |
| 2011/12 | 195.25 | - |