| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 63.1 | -2.6% |
| 2023/12 | 64.8 | +7.0% |
| 2022/12 | 60.5 | -10.8% |
| 2021/12 | 67.9 | -0.8% |
| 2020/12 | 68.4 | -6.5% |
| 2019/12 | 73.2 | +8.2% |
| 2018/12 | 67.6 | +4.7% |
| 2017/12 | 64.6 | +10.2% |
| 2016/12 | 58.7 | +4.4% |
| 2015/12 | 56.2 | -14.6% |
| 2014/12 | 65.8 | +66.3% |
| 2013/12 | 39.6 | -9.5% |
| 2012/12 | 43.7 | -19.5% |
| 2011/12 | 54.3 | +9.2% |
| 2010/12 | 49.7 | - |