| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 75.6 | -4.5% |
| 2023/12 | 79.1 | +2.1% |
| 2022/12 | 77.5 | -4.4% |
| 2021/12 | 81.1 | -30.2% |
| 2020/12 | 116.1 | +0.2% |
| 2019/12 | 115.9 | -23.0% |
| 2018/12 | 150.5 | +161.3% |
| 2017/12 | 57.6 | -26.2% |
| 2016/12 | 78.0 | -3.1% |
| 2015/12 | 80.5 | +7.3% |
| 2014/12 | 75.1 | +13.9% |
| 2013/12 | 65.9 | -28.9% |
| 2012/12 | 92.7 | +43.3% |
| 2011/12 | 64.7 | +2.4% |
| 2010/12 | 63.2 | - |