| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 73.6 | +19.3% |
| 2023/12 | 61.7 | -7.8% |
| 2022/12 | 66.9 | +9.2% |
| 2021/12 | 61.3 | -3.6% |
| 2020/12 | 63.6 | -5.5% |
| 2019/12 | 67.3 | 0.0% |
| 2018/12 | 67.3 | +5.8% |
| 2017/12 | 63.6 | -26.4% |
| 2016/12 | 86.4 | -8.9% |
| 2015/12 | 94.8 | +76.7% |
| 2014/12 | 53.6 | +2.3% |
| 2013/12 | 52.4 | -2.4% |
| 2012/12 | 53.7 | +30.6% |
| 2011/12 | 41.1 | -4.7% |
| 2010/12 | 43.1 | - |