| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 9.95 | -17.5% |
| 2023/12 | 12.07 | -9.4% |
| 2022/12 | 13.32 | -18.6% |
| 2021/12 | 16.37 | -6.7% |
| 2020/12 | 17.55 | +4.2% |
| 2019/12 | 16.85 | +115.1% |
| 2018/12 | 7.83 | -6.3% |
| 2017/12 | 8.36 | -6.4% |
| 2016/12 | 8.92 | -4.8% |
| 2015/12 | 9.37 | -3.8% |
| 2014/12 | 9.74 | -5.8% |
| 2013/12 | 10.34 | -35.3% |
| 2012/12 | 15.97 | -46.7% |
| 2011/12 | 29.94 | -8.4% |
| 2010/12 | 32.69 | - |