| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 5.89 | -40.0% |
| 2023/12 | 9.82 | +4.6% |
| 2022/12 | 9.39 | -27.2% |
| 2021/12 | 12.9 | -8.3% |
| 2020/12 | 14.06 | -3.2% |
| 2019/12 | 14.53 | -46.1% |
| 2018/12 | 26.96 | +16.3% |
| 2017/12 | 23.18 | -16.1% |
| 2016/12 | 27.62 | +15.9% |
| 2015/12 | 23.84 | +36.8% |
| 2014/12 | 17.43 | -1.5% |
| 2013/12 | 17.7 | +35.0% |
| 2012/12 | 13.11 | -6.8% |
| 2011/12 | 14.06 | -11.7% |
| 2010/12 | 15.92 | - |