| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2025/3 | 31.5 | +0.3% |
| 2024/3 | 31.4 | -7.0% |
| 2023/3 | 33.8 | - |
| 2021/12 | 31.7 | -47.0% |
| 2020/12 | 59.9 | +117.2% |
| 2019/12 | 27.6 | -23.7% |
| 2018/12 | 36.1 | -7.9% |
| 2017/12 | 39.2 | -2.5% |
| 2016/12 | 40.2 | +0.8% |
| 2015/12 | 39.9 | +89.7% |
| 2014/12 | 21.0 | +318.9% |
| 2013/12 | 5.0 | -33.7% |
| 2012/12 | 7.6 | -38.0% |
| 2011/12 | 12.2 | +280.7% |
| 2010/12 | 3.2 | - |