| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 36.4 | -37.9% |
| 2023/12 | 58.6 | -14.7% |
| 2022/12 | 68.6 | -4.7% |
| 2021/12 | 72.1 | -21.5% |
| 2020/12 | 91.8 | -6.7% |
| 2019/12 | 98.5 | -7.4% |
| 2018/12 | 106.3 | +39.7% |
| 2017/12 | 76.1 | -9.8% |
| 2016/12 | 84.4 | +18.1% |
| 2015/12 | 71.4 | +17.3% |
| 2014/12 | 60.9 | +26.0% |
| 2013/12 | 48.3 | +8.6% |
| 2012/12 | 44.5 | +0.4% |
| 2011/12 | 44.3 | +12.1% |
| 2010/12 | 39.6 | - |