| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 32.9 | -12.4% |
| 2023/12 | 37.6 | -59.1% |
| 2022/12 | 91.8 | +303.9% |
| 2021/12 | 22.7 | -2.4% |
| 2020/12 | 23.3 | -46.5% |
| 2019/12 | 43.6 | -17.6% |
| 2018/12 | 52.9 | -8.2% |
| 2017/12 | 57.6 | -21.9% |
| 2016/12 | 73.8 | +1.2% |
| 2015/12 | 72.9 | +3.6% |
| 2014/12 | 70.4 | +2.1% |
| 2013/12 | 68.9 | +42.5% |
| 2012/12 | 48.4 | +0.2% |
| 2011/12 | 48.3 | -19.3% |
| 2010/12 | 59.8 | - |