| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 38.71 | -5.3% |
| 2023/12 | 40.87 | -4.0% |
| 2022/12 | 42.55 | -13.6% |
| 2021/12 | 49.27 | -33.7% |
| 2020/12 | 74.28 | +15.9% |
| 2019/12 | 64.07 | -24.6% |
| 2018/12 | 84.99 | -4.5% |
| 2017/12 | 88.99 | +123.7% |
| 2016/12 | 39.78 | +24.6% |
| 2015/12 | 31.92 | -12.7% |
| 2014/12 | 36.58 | -24.6% |
| 2013/12 | 48.54 | -10.4% |
| 2012/12 | 54.18 | +12.5% |
| 2011/12 | 48.15 | -2.8% |
| 2010/12 | 49.57 | - |