| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 38.7 | -5.3% |
| 2023/12 | 40.9 | -4.0% |
| 2022/12 | 42.6 | -13.6% |
| 2021/12 | 49.3 | -33.7% |
| 2020/12 | 74.3 | +15.9% |
| 2019/12 | 64.1 | -24.6% |
| 2018/12 | 85.0 | -4.5% |
| 2017/12 | 89.0 | +123.7% |
| 2016/12 | 39.8 | +24.6% |
| 2015/12 | 31.9 | -12.7% |
| 2014/12 | 36.6 | -24.6% |
| 2013/12 | 48.5 | -10.4% |
| 2012/12 | 54.2 | +12.5% |
| 2011/12 | 48.2 | -2.8% |
| 2010/12 | 49.6 | - |