| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 38.0 | -11.3% |
| 2023/12 | 42.8 | -16.9% |
| 2022/12 | 51.4 | -23.0% |
| 2021/12 | 66.8 | -31.9% |
| 2020/12 | 98.1 | -9.7% |
| 2019/12 | 108.7 | +25.5% |
| 2018/12 | 86.6 | -17.8% |
| 2017/12 | 105.4 | -46.3% |
| 2016/12 | 196.3 | +129.9% |
| 2015/12 | 85.4 | +18.1% |
| 2014/12 | 72.3 | +14.2% |
| 2013/12 | 63.4 | -12.9% |
| 2012/12 | 72.8 | -10.0% |
| 2011/12 | 80.8 | +26.2% |
| 2010/12 | 64.0 | - |