| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 81.1 | -13.6% |
| 2023/12 | 93.9 | +22.2% |
| 2022/12 | 76.8 | +2.2% |
| 2021/12 | 75.1 | -12.7% |
| 2020/12 | 86.1 | +62.0% |
| 2019/12 | 53.1 | -2.1% |
| 2018/12 | 54.2 | -14.3% |
| 2017/12 | 63.3 | -4.6% |
| 2016/12 | 66.4 | +57.4% |
| 2015/12 | 42.1 | +6.3% |
| 2014/12 | 39.6 | -6.9% |
| 2013/12 | 42.6 | +12.3% |
| 2012/12 | 37.9 | -10.7% |
| 2011/12 | 42.5 | -13.5% |
| 2010/12 | 49.1 | - |