| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 35.3 | +37.5% |
| 2023/12 | 25.7 | -48.6% |
| 2022/12 | 49.9 | -5.8% |
| 2021/12 | 53.0 | +18.4% |
| 2020/12 | 44.7 | +31.1% |
| 2019/12 | 34.1 | +6.8% |
| 2018/12 | 31.9 | +112.4% |
| 2017/12 | 15.0 | -43.5% |
| 2016/12 | 26.6 | -19.9% |
| 2015/12 | 33.2 | +7625.7% |
| 2014/12 | 0.4 | -98.3% |
| 2013/12 | 25.1 | -5.0% |
| 2012/12 | 26.5 | +6559.3% |
| 2011/12 | 0.4 | -97.8% |
| 2010/12 | 18.2 | - |