| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 39.13 | +10.4% |
| 2023/12 | 35.45 | -6.1% |
| 2022/12 | 37.76 | -34.2% |
| 2021/12 | 57.41 | -18.8% |
| 2020/12 | 70.69 | +0.7% |
| 2019/12 | 70.2 | -14.4% |
| 2018/12 | 81.98 | +16.8% |
| 2017/12 | 70.2 | -21.1% |
| 2016/12 | 89.0 | -29.5% |
| 2015/12 | 126.21 | +25.7% |
| 2014/12 | 100.44 | +76.3% |
| 2013/12 | 56.97 | +123.7% |
| 2012/12 | 25.47 | -22.1% |
| 2011/12 | 32.7 | -25.8% |
| 2010/12 | 44.08 | - |