| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 63.53 | +4.5% |
| 2023/12 | 60.8 | +15.7% |
| 2022/12 | 52.53 | +29.1% |
| 2021/12 | 40.7 | +10.5% |
| 2020/12 | 36.83 | +3.2% |
| 2019/12 | 35.67 | -35.1% |
| 2018/12 | 54.93 | -19.4% |
| 2017/12 | 68.15 | +51.2% |
| 2016/12 | 45.07 | -4.4% |
| 2015/12 | 47.12 | -20.6% |
| 2014/12 | 59.37 | +86.6% |
| 2013/12 | 31.82 | -26.4% |
| 2012/12 | 43.23 | -11.4% |
| 2011/12 | 48.77 | -33.9% |
| 2010/12 | 73.77 | - |