| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 78.0 | +0.2% |
| 2023/12 | 77.8 | +1.3% |
| 2022/12 | 76.9 | +0.8% |
| 2021/12 | 76.2 | -11.6% |
| 2020/12 | 86.3 | -7.3% |
| 2019/12 | 93.0 | -7.7% |
| 2018/12 | 100.8 | -10.1% |
| 2017/12 | 112.2 | -18.1% |
| 2016/12 | 137.0 | -16.3% |
| 2015/12 | 163.6 | -19.0% |
| 2014/12 | 201.9 | +83.9% |
| 2013/12 | 109.8 | -30.4% |
| 2012/12 | 157.8 | +104.2% |
| 2011/12 | 77.3 | -21.3% |
| 2010/12 | 98.2 | - |