| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 189.3 | +55.2% |
| 2023/12 | 121.9 | +12.6% |
| 2022/12 | 108.3 | +11.5% |
| 2021/12 | 97.1 | +7.1% |
| 2020/12 | 90.7 | +5.2% |
| 2019/12 | 86.1 | -0.9% |
| 2018/12 | 86.9 | +8.3% |
| 2017/12 | 80.3 | +2.5% |
| 2016/12 | 78.3 | -4.8% |
| 2015/12 | 82.3 | -2.1% |
| 2014/12 | 84.1 | -2.7% |
| 2013/12 | 86.4 | -3.2% |
| 2012/12 | 89.3 | +2.1% |
| 2011/12 | 87.5 | -4.9% |
| 2010/12 | 92.0 | - |