| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 10.3 | +48.6% |
| 2023/12 | 6.9 | -65.0% |
| 2022/12 | 19.7 | +83.6% |
| 2021/12 | 10.7 | +75.3% |
| 2020/12 | 6.1 | -64.1% |
| 2019/12 | 17.0 | +32.1% |
| 2018/12 | 12.9 | -48.2% |
| 2017/12 | 24.9 | +16.6% |
| 2016/12 | 21.4 | +23.7% |
| 2015/12 | 17.3 | +6.6% |
| 2014/12 | 16.2 | +12.2% |
| 2013/12 | 14.4 | -29.2% |
| 2012/12 | 20.4 | -52.0% |
| 2011/12 | 42.5 | +43.6% |
| 2010/12 | 29.6 | - |