| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 13.2 | -18.4% |
| 2023/12 | 16.2 | -12.9% |
| 2022/12 | 18.6 | -43.5% |
| 2021/12 | 33.0 | -53.8% |
| 2020/12 | 71.3 | -36.8% |
| 2019/12 | 112.9 | -0.4% |
| 2018/12 | 113.4 | -6.9% |
| 2017/12 | 121.8 | -18.8% |
| 2016/12 | 150.0 | +65.7% |
| 2015/12 | 90.5 | -6.4% |
| 2014/12 | 96.8 | +19.6% |
| 2013/12 | 80.9 | -25.2% |
| 2012/12 | 108.1 | +574.3% |
| 2011/12 | 16.0 | -52.8% |
| 2010/12 | 34.0 | - |