| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 108.89 | +13.2% |
| 2023/12 | 96.21 | -6.7% |
| 2022/12 | 103.06 | -7.0% |
| 2021/12 | 110.85 | +15.2% |
| 2020/12 | 96.22 | +24.7% |
| 2019/12 | 77.19 | -1.8% |
| 2018/12 | 78.57 | +0.9% |
| 2017/12 | 77.88 | +2.0% |
| 2016/12 | 76.38 | -7.2% |
| 2015/12 | 82.35 | -3.0% |
| 2014/12 | 84.92 | +7.5% |
| 2013/12 | 79.03 | -14.8% |
| 2012/12 | 92.72 | -4.5% |
| 2011/12 | 97.08 | -1.4% |
| 2010/12 | 98.45 | - |