| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 65.2 | +26.2% |
| 2023/12 | 51.6 | -7.4% |
| 2022/12 | 55.7 | -5.6% |
| 2021/12 | 59.1 | +8.3% |
| 2020/12 | 54.5 | +10.1% |
| 2019/12 | 49.5 | -7.3% |
| 2018/12 | 53.4 | -7.0% |
| 2017/12 | 57.5 | +32.5% |
| 2016/12 | 43.4 | -2.5% |
| 2015/12 | 44.5 | -6.4% |
| 2014/12 | 47.5 | -25.8% |
| 2013/12 | 64.1 | -10.0% |
| 2012/12 | 71.2 | -4.1% |
| 2011/12 | 74.3 | +21.0% |
| 2010/12 | 61.4 | - |