| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 57.7 | +1.7% |
| 2023/12 | 56.7 | -8.6% |
| 2022/12 | 62.1 | -13.3% |
| 2021/12 | 71.6 | +2.3% |
| 2020/12 | 70.0 | +3.9% |
| 2019/12 | 67.3 | +27.1% |
| 2018/12 | 52.9 | +29.0% |
| 2017/12 | 41.0 | -25.7% |
| 2016/12 | 55.2 | -12.6% |
| 2015/12 | 63.2 | +2.1% |
| 2014/12 | 61.9 | +40.0% |
| 2013/12 | 44.2 | +41.0% |
| 2012/12 | 31.4 | -23.6% |
| 2011/12 | 41.1 | +13.2% |
| 2010/12 | 36.3 | - |