| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 54.9 | -16.4% |
| 2023/12 | 65.7 | -8.0% |
| 2022/12 | 71.4 | +37.7% |
| 2021/12 | 51.8 | -7.2% |
| 2020/12 | 55.8 | -10.1% |
| 2019/12 | 62.1 | -20.9% |
| 2018/12 | 78.6 | -1.3% |
| 2017/12 | 79.6 | +8.5% |
| 2016/12 | 73.4 | -15.6% |
| 2015/12 | 86.9 | -8.9% |
| 2014/12 | 95.4 | +1.3% |
| 2013/12 | 94.2 | +4.6% |
| 2012/12 | 90.1 | -27.8% |
| 2011/12 | 124.7 | -5.3% |
| 2010/12 | 131.7 | - |