| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 65.18 | +26.2% |
| 2023/12 | 51.65 | -7.4% |
| 2022/12 | 55.75 | -5.6% |
| 2021/12 | 59.08 | +8.3% |
| 2020/12 | 54.54 | +10.1% |
| 2019/12 | 49.53 | -7.3% |
| 2018/12 | 53.42 | -7.0% |
| 2017/12 | 57.45 | +32.5% |
| 2016/12 | 43.37 | -2.5% |
| 2015/12 | 44.46 | -6.4% |
| 2014/12 | 47.52 | -25.8% |
| 2013/12 | 64.05 | -10.0% |
| 2012/12 | 71.18 | -4.1% |
| 2011/12 | 74.25 | +21.0% |
| 2010/12 | 61.36 | - |