| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 69.1 | -4.0% |
| 2023/12 | 72.0 | +94.1% |
| 2022/12 | 37.1 | -23.7% |
| 2021/12 | 48.6 | -20.9% |
| 2020/12 | 61.4 | +4.2% |
| 2019/12 | 59.0 | -0.2% |
| 2018/12 | 59.1 | +26.3% |
| 2017/12 | 46.8 | -21.4% |
| 2016/12 | 59.5 | +34.6% |
| 2015/12 | 44.2 | +0.4% |
| 2014/12 | 44.0 | +3.8% |
| 2013/12 | 42.4 | +3.5% |
| 2012/12 | 41.0 | -3.0% |
| 2011/12 | 42.3 | -2.8% |
| 2010/12 | 43.5 | - |