| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 43.9 | -37.7% |
| 2023/12 | 70.5 | +16.3% |
| 2022/12 | 60.7 | -5.3% |
| 2021/12 | 64.1 | -7.0% |
| 2020/12 | 68.9 | -12.3% |
| 2019/12 | 78.6 | -18.6% |
| 2018/12 | 96.6 | +61.2% |
| 2017/12 | 59.9 | -3.0% |
| 2016/12 | 61.8 | +81.3% |
| 2015/12 | 34.1 | +10.9% |
| 2014/12 | 30.7 | -1.5% |
| 2013/12 | 31.2 | -12.8% |
| 2012/12 | 35.8 | -11.6% |
| 2011/12 | 40.5 | -0.6% |
| 2010/12 | 40.7 | - |