| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 68.8 | -2.2% |
| 2023/12 | 70.4 | -15.2% |
| 2022/12 | 83.0 | -10.1% |
| 2021/12 | 92.3 | -8.9% |
| 2020/12 | 101.3 | -16.7% |
| 2019/12 | 121.6 | +54.2% |
| 2018/12 | 78.8 | -28.7% |
| 2017/12 | 110.6 | +22.5% |
| 2016/12 | 90.3 | -15.4% |
| 2015/12 | 106.7 | +46.5% |
| 2014/12 | 72.8 | -0.8% |
| 2013/12 | 73.4 | +24.8% |
| 2012/12 | 58.8 | -4.0% |
| 2011/12 | 61.2 | +17.6% |
| 2010/12 | 52.1 | - |