| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 52.9 | +4.1% |
| 2023/12 | 50.8 | -32.1% |
| 2022/12 | 74.8 | +24.9% |
| 2021/12 | 59.8 | +9.2% |
| 2020/12 | 54.8 | -1.3% |
| 2019/12 | 55.5 | +18.6% |
| 2018/12 | 46.8 | -16.5% |
| 2017/12 | 56.1 | -8.7% |
| 2016/12 | 61.4 | +10.3% |
| 2015/12 | 55.7 | -7.4% |
| 2014/12 | 60.1 | -3.4% |
| 2013/12 | 62.2 | -21.2% |
| 2012/12 | 79.0 | -8.6% |
| 2011/12 | 86.5 | -19.1% |
| 2010/12 | 106.9 | - |