| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 39.14 | -13.2% |
| 2023/12 | 45.11 | -14.6% |
| 2022/12 | 52.8 | -8.2% |
| 2021/12 | 57.52 | +7.3% |
| 2020/12 | 53.61 | +25.1% |
| 2019/12 | 42.87 | -13.9% |
| 2018/12 | 49.8 | -6.5% |
| 2017/12 | 53.28 | -15.7% |
| 2016/12 | 63.17 | -16.7% |
| 2015/12 | 75.83 | +17.6% |
| 2014/12 | 64.48 | +4.4% |
| 2013/12 | 61.74 | +7.8% |
| 2012/12 | 57.29 | +20.6% |
| 2011/12 | 47.51 | +39.9% |
| 2010/12 | 33.97 | - |