| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 39.1 | -13.2% |
| 2023/12 | 45.1 | -14.6% |
| 2022/12 | 52.8 | -8.2% |
| 2021/12 | 57.5 | +7.3% |
| 2020/12 | 53.6 | +25.1% |
| 2019/12 | 42.9 | -13.9% |
| 2018/12 | 49.8 | -6.5% |
| 2017/12 | 53.3 | -15.7% |
| 2016/12 | 63.2 | -16.7% |
| 2015/12 | 75.8 | +17.6% |
| 2014/12 | 64.5 | +4.4% |
| 2013/12 | 61.7 | +7.8% |
| 2012/12 | 57.3 | +20.6% |
| 2011/12 | 47.5 | +39.9% |
| 2010/12 | 34.0 | - |