| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 35.4 | +3.4% |
| 2023/12 | 34.3 | -11.8% |
| 2022/12 | 38.9 | +7.9% |
| 2021/12 | 36.0 | -29.1% |
| 2020/12 | 50.8 | -39.5% |
| 2019/12 | 83.9 | -0.2% |
| 2018/12 | 84.1 | -5.6% |
| 2017/12 | 89.1 | -15.5% |
| 2016/12 | 105.5 | +51.8% |
| 2015/12 | 69.5 | -13.7% |
| 2014/12 | 80.5 | +23.0% |
| 2013/12 | 65.5 | -8.0% |
| 2012/12 | 71.2 | -4.6% |
| 2011/12 | 74.6 | -0.0% |
| 2010/12 | 74.6 | - |