| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 64.53 | -6.2% |
| 2023/12 | 68.78 | +11.1% |
| 2022/12 | 61.93 | +14.7% |
| 2021/12 | 53.98 | -22.6% |
| 2020/12 | 69.79 | -0.8% |
| 2019/12 | 70.35 | -6.6% |
| 2018/12 | 75.34 | -22.0% |
| 2017/12 | 96.62 | +47.7% |
| 2016/12 | 65.41 | +11.5% |
| 2015/12 | 58.64 | -4.4% |
| 2014/12 | 61.35 | -3.5% |
| 2013/12 | 63.57 | -9.6% |
| 2012/12 | 70.34 | +0.1% |
| 2011/12 | 70.28 | -10.5% |
| 2010/12 | 78.52 | - |