| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 58.0 | +19.5% |
| 2023/12 | 48.5 | +7.3% |
| 2022/12 | 45.2 | +33.0% |
| 2021/12 | 34.0 | -41.1% |
| 2020/12 | 57.7 | -31.7% |
| 2019/12 | 84.6 | +0.2% |
| 2018/12 | 84.4 | +26.0% |
| 2017/12 | 67.0 | -76.2% |
| 2016/12 | 281.0 | -1.0% |
| 2015/12 | 283.9 | +14.1% |
| 2014/12 | 248.8 | +45.8% |
| 2013/12 | 170.6 | -5.2% |
| 2012/12 | 180.1 | -14.3% |
| 2011/12 | 210.0 | +7.1% |
| 2010/12 | 196.1 | - |