| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 68.5 | +7.4% |
| 2023/12 | 63.8 | +117.8% |
| 2022/12 | 29.3 | -14.3% |
| 2021/12 | 34.1 | -0.1% |
| 2020/12 | 34.2 | +10.5% |
| 2019/12 | 30.9 | +13.0% |
| 2018/12 | 27.4 | +21.0% |
| 2017/12 | 22.6 | -14.6% |
| 2016/12 | 26.5 | -11.1% |
| 2015/12 | 29.8 | -9.9% |
| 2014/12 | 33.1 | -3.8% |
| 2013/12 | 34.4 | +7.5% |
| 2012/12 | 31.9 | +21.5% |
| 2011/12 | 26.3 | -7.2% |
| 2010/12 | 28.3 | - |