| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 50.6 | -18.9% |
| 2023/12 | 62.3 | -16.4% |
| 2022/12 | 74.5 | -17.0% |
| 2021/12 | 89.7 | +49.6% |
| 2020/12 | 60.0 | -11.6% |
| 2019/12 | 67.9 | -20.9% |
| 2018/12 | 85.8 | -9.5% |
| 2017/12 | 94.8 | +170.5% |
| 2016/12 | 35.1 | +2.4% |
| 2015/12 | 34.2 | -23.4% |
| 2014/12 | 44.7 | +58.4% |
| 2013/12 | 28.2 | -10.4% |
| 2012/12 | 31.5 | +157.5% |
| 2011/12 | 12.2 | -8.3% |
| 2010/12 | 13.3 | - |