| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 23.7 | +102.5% |
| 2023/12 | 11.7 | -93.2% |
| 2022/12 | 172.2 | +85.3% |
| 2021/12 | 92.9 | -57.3% |
| 2020/12 | 217.5 | -19.3% |
| 2019/12 | 269.6 | +120.4% |
| 2018/12 | 122.4 | +6.8% |
| 2017/12 | 114.5 | +60.7% |
| 2016/12 | 71.2 | -30.9% |
| 2015/12 | 103.1 | +202.8% |
| 2014/12 | 34.0 | +95.5% |
| 2013/12 | 17.4 | -11.5% |
| 2012/12 | 19.7 | +131.4% |
| 2011/12 | 8.5 | -12.9% |
| 2010/12 | 9.8 | - |