| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 61.5 | -20.8% |
| 2023/12 | 77.6 | -1.0% |
| 2022/12 | 78.4 | +4.5% |
| 2021/12 | 75.0 | -4.5% |
| 2020/12 | 78.5 | -17.9% |
| 2019/12 | 95.7 | -22.8% |
| 2018/12 | 124.0 | -31.1% |
| 2017/12 | 180.0 | -15.9% |
| 2016/12 | 214.0 | +96.8% |
| 2015/12 | 108.7 | -17.1% |
| 2014/12 | 131.1 | -0.1% |
| 2013/12 | 131.2 | -20.3% |
| 2012/12 | 164.6 | -15.7% |
| 2011/12 | 195.2 | - |