| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 22.1 | -17.7% |
| 2023/12 | 26.8 | -8.8% |
| 2022/12 | 29.4 | -23.1% |
| 2021/12 | 38.3 | -21.9% |
| 2020/12 | 49.0 | -32.7% |
| 2019/12 | 72.9 | +1.5% |
| 2018/12 | 71.8 | -2.2% |
| 2017/12 | 73.4 | -24.5% |
| 2016/12 | 97.2 | -17.0% |
| 2015/12 | 117.2 | -8.7% |
| 2014/12 | 128.3 | -18.4% |
| 2013/12 | 157.1 | -20.6% |
| 2012/12 | 198.0 | +30.7% |
| 2011/12 | 151.5 | 0.0% |
| 2010/12 | 151.4 | - |