| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 49.3 | -2.8% |
| 2023/12 | 50.8 | -13.8% |
| 2022/12 | 58.9 | -32.2% |
| 2021/12 | 86.9 | -32.3% |
| 2020/12 | 128.4 | +110.2% |
| 2019/12 | 61.1 | +52.6% |
| 2018/12 | 40.0 | +0.3% |
| 2017/12 | 39.9 | -10.1% |
| 2016/12 | 44.4 | -8.7% |
| 2015/12 | 48.6 | +56.6% |
| 2014/12 | 31.0 | +0.7% |
| 2013/12 | 30.8 | +823.5% |
| 2012/12 | 3.3 | +0.6% |
| 2011/12 | 3.3 | -52.9% |
| 2010/12 | 7.0 | - |