| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 34.3 | +3.0% |
| 2023/12 | 33.3 | +13.1% |
| 2022/12 | 29.4 | -84.9% |
| 2021/12 | 195.3 | -72.9% |
| 2020/12 | 719.8 | -2.3% |
| 2019/12 | 736.6 | +37.6% |
| 2018/12 | 535.4 | +29.7% |
| 2017/12 | 412.8 | -18.8% |
| 2016/12 | 508.4 | -64.4% |
| 2015/12 | 1427.2 | +867.6% |
| 2014/12 | 147.5 | +148.1% |
| 2013/12 | 59.4 | -37.5% |
| 2012/12 | 95.1 | +88.8% |
| 2011/12 | 50.4 | -3.6% |
| 2010/12 | 52.3 | - |