| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 79.7 | -14.2% |
| 2023/12 | 93.0 | +40.6% |
| 2022/12 | 66.1 | -23.3% |
| 2021/12 | 86.2 | -20.8% |
| 2020/12 | 108.9 | +14.9% |
| 2019/12 | 94.8 | +28.6% |
| 2018/12 | 73.7 | +19.3% |
| 2017/12 | 61.8 | +2.6% |
| 2016/12 | 60.2 | +13.1% |
| 2015/12 | 53.2 | +38.9% |
| 2014/12 | 38.3 | -2.4% |
| 2013/12 | 39.3 | +33.9% |
| 2012/12 | 29.3 | +7.5% |
| 2011/12 | 27.3 | 0.0% |
| 2010/12 | 27.3 | - |