| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 30.6 | +4.1% |
| 2023/12 | 29.38 | -7.2% |
| 2022/12 | 31.65 | +22.6% |
| 2021/12 | 25.83 | +41.0% |
| 2020/12 | 18.31 | -1.5% |
| 2019/12 | 18.59 | -1.2% |
| 2018/12 | 18.81 | -0.4% |
| 2017/12 | 18.89 | -5.9% |
| 2016/12 | 20.08 | -6.4% |
| 2015/12 | 21.44 | -5.2% |
| 2014/12 | 22.63 | +41.8% |
| 2013/12 | 15.95 | -4.7% |
| 2012/12 | 16.74 | -23.9% |
| 2011/12 | 22.01 | -20.6% |
| 2010/12 | 27.72 | - |