| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 41.1 | +33.0% |
| 2023/12 | 30.9 | -63.1% |
| 2022/12 | 83.8 | -35.5% |
| 2021/12 | 129.7 | -253.7% |
| 2020/12 | -84.4 | -156.1% |
| 2019/12 | 150.5 | +140.0% |
| 2018/12 | 62.7 | -4.6% |
| 2017/12 | 65.7 | -9.9% |
| 2016/12 | 73.0 | +57.3% |
| 2015/12 | 46.4 | +51.5% |
| 2014/12 | 30.6 | +110.0% |
| 2013/12 | 14.6 | -45.0% |
| 2012/12 | 26.5 | +7253.3% |
| 2011/12 | 0.4 | - |