| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 57.84 | -5.6% |
| 2023/12 | 61.25 | -2.9% |
| 2022/12 | 63.11 | +17.6% |
| 2021/12 | 53.65 | -3.2% |
| 2020/12 | 55.44 | -18.3% |
| 2019/12 | 67.89 | -15.3% |
| 2018/12 | 80.19 | +13.1% |
| 2017/12 | 70.89 | +1.7% |
| 2016/12 | 69.73 | -3.9% |
| 2015/12 | 72.59 | +68.5% |
| 2014/12 | 43.08 | +53.8% |
| 2013/12 | 28.01 | -3.2% |
| 2012/12 | 28.94 | -2.8% |
| 2011/12 | 29.78 | -9.7% |
| 2010/12 | 32.97 | - |