| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 66.7 | -15.8% |
| 2023/12 | 79.3 | -1.6% |
| 2022/12 | 80.6 | +19.1% |
| 2021/12 | 67.7 | +12.3% |
| 2020/12 | 60.2 | -15.7% |
| 2019/12 | 71.4 | -2.4% |
| 2018/12 | 73.2 | -8.5% |
| 2017/12 | 80.0 | -11.1% |
| 2016/12 | 90.0 | +13.0% |
| 2015/12 | 79.6 | -7.9% |
| 2014/12 | 86.5 | -13.8% |
| 2013/12 | 100.3 | -25.6% |
| 2012/12 | 134.9 | -13.4% |
| 2011/12 | 155.7 | -19.5% |
| 2010/12 | 193.5 | - |