| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2023/12 | 20.87 | -4.1% |
| 2022/12 | 21.76 | -28.3% |
| 2021/12 | 30.35 | +6.4% |
| 2020/12 | 28.52 | +51.0% |
| 2019/12 | 18.89 | +0.2% |
| 2018/12 | 18.86 | -22.1% |
| 2017/12 | 24.22 | -21.5% |
| 2016/12 | 30.86 | -29.3% |
| 2015/12 | 43.64 | +41.6% |
| 2014/12 | 30.83 | -23.1% |
| 2013/12 | 40.11 | -36.8% |
| 2012/12 | 63.42 | +41.7% |
| 2011/12 | 44.75 | -27.3% |
| 2010/12 | 61.56 | - |