| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 57.2 | +5.8% |
| 2023/12 | 54.1 | -23.0% |
| 2022/12 | 70.3 | -9.9% |
| 2021/12 | 78.0 | +75.1% |
| 2020/12 | 44.6 | -14.0% |
| 2019/12 | 51.8 | -17.8% |
| 2018/12 | 63.0 | -2.5% |
| 2017/12 | 64.6 | +58.8% |
| 2016/12 | 40.7 | +5.3% |
| 2015/12 | 38.6 | +6.1% |
| 2014/12 | 36.4 | -44.4% |
| 2013/12 | 65.5 | -9.4% |
| 2012/12 | 72.3 | -1.3% |
| 2011/12 | 73.2 | +4.2% |
| 2010/12 | 70.2 | - |