| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 59.7 | -17.9% |
| 2023/12 | 72.7 | -9.7% |
| 2022/12 | 80.5 | +6.9% |
| 2021/12 | 75.3 | +3.1% |
| 2020/12 | 73.0 | +6.4% |
| 2019/12 | 68.6 | +16.7% |
| 2018/12 | 58.8 | -2.9% |
| 2017/12 | 60.6 | -14.6% |
| 2016/12 | 70.9 | +16.3% |
| 2015/12 | 61.0 | +27.8% |
| 2014/12 | 47.7 | -46.8% |
| 2013/12 | 89.7 | +1.5% |
| 2012/12 | 88.3 | +37.9% |
| 2011/12 | 64.0 | +4.3% |
| 2010/12 | 61.4 | - |