| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 38.3 | -30.1% |
| 2023/12 | 54.7 | -39.4% |
| 2022/12 | 90.3 | -28.0% |
| 2021/12 | 125.4 | -8.6% |
| 2020/12 | 137.2 | -29.9% |
| 2019/12 | 195.8 | +311.2% |
| 2018/12 | 47.6 | -22.8% |
| 2017/12 | 61.7 | +1135.6% |
| 2016/12 | 5.0 | -76.3% |
| 2015/12 | 21.1 | -21.8% |
| 2014/12 | 26.9 | +322.2% |
| 2013/12 | 6.4 | -44.2% |
| 2012/12 | 11.4 | +2834.3% |
| 2011/12 | 0.4 | - |