| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 47.6 | +29.8% |
| 2023/12 | 36.6 | -35.4% |
| 2022/12 | 56.7 | +35.0% |
| 2021/12 | 42.0 | +3.1% |
| 2020/12 | 40.7 | -24.9% |
| 2019/12 | 54.3 | -10.0% |
| 2018/12 | 60.2 | +2.7% |
| 2017/12 | 58.7 | -2.9% |
| 2016/12 | 60.4 | +6.4% |
| 2015/12 | 56.8 | +14.1% |
| 2014/12 | 49.7 | -6.5% |
| 2013/12 | 53.2 | +33.6% |
| 2012/12 | 39.8 | -24.1% |
| 2011/12 | 52.5 | -3.2% |
| 2010/12 | 54.2 | - |