| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 46.0 | -25.6% |
| 2023/12 | 61.8 | -27.8% |
| 2022/12 | 85.6 | +131.8% |
| 2021/12 | 36.9 | -7.4% |
| 2020/12 | 39.9 | -24.3% |
| 2019/12 | 52.7 | +22.8% |
| 2018/12 | 42.9 | +50.0% |
| 2017/12 | 28.6 | -71.6% |
| 2016/12 | 100.6 | -13.9% |
| 2015/12 | 116.9 | +81.9% |
| 2014/12 | 64.3 | +56.8% |
| 2013/12 | 41.0 | +8.2% |
| 2012/12 | 37.9 | -40.6% |
| 2011/12 | 63.8 | +100.1% |
| 2010/12 | 31.9 | - |