| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 36.2 | +4.4% |
| 2023/12 | 34.6 | -8.3% |
| 2022/12 | 37.8 | -23.3% |
| 2021/12 | 49.3 | -31.0% |
| 2020/12 | 71.4 | +6.4% |
| 2019/12 | 67.1 | +11.1% |
| 2018/12 | 60.4 | -15.0% |
| 2017/12 | 71.1 | -11.7% |
| 2016/12 | 80.5 | -16.8% |
| 2015/12 | 96.8 | -5.4% |
| 2014/12 | 102.4 | +23.7% |
| 2013/12 | 82.7 | -9.6% |
| 2012/12 | 91.6 | -10.9% |
| 2011/12 | 102.8 | -9.9% |
| 2010/12 | 114.0 | - |