| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 68.5 | -4.0% |
| 2023/12 | 71.38 | -3.9% |
| 2022/12 | 74.29 | +5.9% |
| 2021/12 | 70.17 | +15.0% |
| 2020/12 | 61.01 | +7.5% |
| 2019/12 | 56.74 | +9.7% |
| 2018/12 | 51.73 | +1.1% |
| 2017/12 | 51.14 | +2.0% |
| 2016/12 | 50.12 | -22.4% |
| 2015/12 | 64.55 | +13.7% |
| 2014/12 | 56.77 | -12.6% |
| 2013/12 | 64.97 | +11.4% |
| 2012/12 | 58.33 | -16.0% |
| 2011/12 | 69.43 | +25.7% |
| 2010/12 | 55.24 | - |