| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 57.3 | -5.4% |
| 2023/12 | 60.6 | +109.2% |
| 2022/12 | 29.0 | +288.6% |
| 2021/12 | 7.5 | -60.9% |
| 2020/12 | 19.1 | -73.8% |
| 2019/12 | 72.7 | +27.7% |
| 2018/12 | 56.9 | -11.1% |
| 2017/12 | 64.0 | -21.8% |
| 2016/12 | 81.9 | -29.7% |
| 2015/12 | 116.5 | +5.2% |
| 2014/12 | 110.7 | -48.0% |
| 2013/12 | 212.8 | +26.8% |
| 2012/12 | 167.8 | -34.9% |
| 2011/12 | 257.8 | - |