| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 49.73 | +7.7% |
| 2023/12 | 46.19 | -2.5% |
| 2022/12 | 47.36 | -15.1% |
| 2021/12 | 55.81 | -16.2% |
| 2020/12 | 66.61 | +0.4% |
| 2019/12 | 66.34 | -16.3% |
| 2018/12 | 79.27 | -8.3% |
| 2017/12 | 86.42 | -25.7% |
| 2016/12 | 116.25 | -0.0% |
| 2015/12 | 116.26 | +432.0% |
| 2014/12 | 21.85 | -17.7% |
| 2013/12 | 26.54 | -9.5% |
| 2012/12 | 29.33 | +2.6% |
| 2011/12 | 28.58 | +44.4% |
| 2010/12 | 19.79 | - |