| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 56.2 | -21.8% |
| 2023/12 | 71.8 | +6.5% |
| 2022/12 | 67.5 | -1.5% |
| 2021/12 | 68.5 | -10.3% |
| 2020/12 | 76.4 | -5.3% |
| 2019/12 | 80.7 | -13.2% |
| 2018/12 | 92.9 | -22.9% |
| 2017/12 | 120.5 | -19.8% |
| 2016/12 | 150.3 | +6.9% |
| 2015/12 | 140.6 | -9.2% |
| 2014/12 | 154.8 | -20.2% |
| 2013/12 | 194.0 | +137.0% |
| 2012/12 | 81.9 | -5.9% |
| 2011/12 | 87.0 | +59.9% |
| 2010/12 | 54.4 | - |