| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 63.09 | -2.6% |
| 2023/12 | 64.78 | +7.0% |
| 2022/12 | 60.53 | -10.8% |
| 2021/12 | 67.88 | -0.8% |
| 2020/12 | 68.45 | -6.5% |
| 2019/12 | 73.17 | +8.2% |
| 2018/12 | 67.65 | +4.7% |
| 2017/12 | 64.63 | +10.2% |
| 2016/12 | 58.66 | +4.4% |
| 2015/12 | 56.17 | -14.6% |
| 2014/12 | 65.8 | +66.3% |
| 2013/12 | 39.56 | -9.5% |
| 2012/12 | 43.71 | -19.5% |
| 2011/12 | 54.28 | +9.2% |
| 2010/12 | 49.7 | - |