| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 73.0 | -14.6% |
| 2023/12 | 85.4 | +7.9% |
| 2022/12 | 79.1 | +48.7% |
| 2021/12 | 53.2 | -17.8% |
| 2020/12 | 64.8 | -8.2% |
| 2019/12 | 70.6 | -20.5% |
| 2018/12 | 88.8 | -2.4% |
| 2017/12 | 91.0 | +2.6% |
| 2016/12 | 88.6 | -11.2% |
| 2015/12 | 99.8 | +4.5% |
| 2014/12 | 95.5 | +45.1% |
| 2013/12 | 65.9 | +28.0% |
| 2012/12 | 51.5 | -29.6% |
| 2011/12 | 73.1 | +7.6% |
| 2010/12 | 67.9 | - |