| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2025/6 | 11.0 | -23.0% |
| 2024/6 | 14.3 | -58.6% |
| 2023/6 | 34.7 | +52.2% |
| 2022/6 | 22.8 | +2.1% |
| 2021/6 | 22.3 | -52.2% |
| 2020/6 | 46.6 | -23.3% |
| 2019/6 | 60.8 | +363.3% |
| 2018/6 | 13.1 | -76.2% |
| 2017/6 | 55.0 | +6.8% |
| 2016/6 | 51.5 | +172.1% |
| 2015/6 | 18.9 | +10.7% |
| 2014/6 | 17.1 | -8.4% |
| 2013/6 | 18.7 | +19.7% |
| 2012/6 | 15.6 | +169.6% |
| 2011/6 | 5.8 | - |