| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 28.2 | -7.4% |
| 2023/12 | 30.4 | +6.5% |
| 2022/12 | 28.5 | +11.1% |
| 2021/12 | 25.7 | +1.5% |
| 2020/12 | 25.3 | -7.8% |
| 2019/12 | 27.4 | -22.2% |
| 2018/12 | 35.3 | +1.4% |
| 2017/12 | 34.8 | -10.5% |
| 2016/12 | 38.9 | -5.3% |
| 2015/12 | 41.0 | -19.2% |
| 2014/12 | 50.8 | -1.6% |
| 2013/12 | 51.6 | +38.8% |
| 2012/12 | 37.2 | +35.9% |
| 2011/12 | 27.3 | -3.2% |
| 2010/12 | 28.3 | - |