| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 51.1 | -8.6% |
| 2023/12 | 55.9 | -19.9% |
| 2022/12 | 69.8 | -20.0% |
| 2021/12 | 87.3 | +19.4% |
| 2020/12 | 73.1 | -10.1% |
| 2019/12 | 81.3 | +13.1% |
| 2018/12 | 71.9 | -2.2% |
| 2017/12 | 73.4 | +28.2% |
| 2016/12 | 57.3 | -3.7% |
| 2015/12 | 59.5 | +17.0% |
| 2014/12 | 50.9 | +2.4% |
| 2013/12 | 49.7 | -12.0% |
| 2012/12 | 56.5 | +687.7% |
| 2011/12 | 7.2 | +325.7% |
| 2010/12 | 1.7 | - |