| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 16.19 | +19.7% |
| 2023/12 | 13.52 | -34.0% |
| 2022/12 | 20.49 | -11.0% |
| 2021/12 | 23.03 | -19.6% |
| 2020/12 | 28.65 | +19.8% |
| 2019/12 | 23.92 | -23.9% |
| 2018/12 | 31.42 | -19.9% |
| 2017/12 | 39.22 | -21.5% |
| 2016/12 | 49.97 | -2.8% |
| 2015/12 | 51.42 | +54.1% |
| 2014/12 | 33.37 | -13.0% |
| 2013/12 | 38.35 | -19.3% |
| 2012/12 | 47.51 | +19.9% |
| 2011/12 | 39.63 | -22.4% |
| 2010/12 | 51.05 | - |