| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 164.27 | -3.7% |
| 2023/12 | 170.6 | -1.0% |
| 2022/12 | 172.28 | -1.2% |
| 2021/12 | 174.39 | -6.7% |
| 2020/12 | 186.88 | -25.5% |
| 2019/12 | 250.68 | -4.4% |
| 2018/12 | 262.1 | -14.4% |
| 2017/12 | 306.16 | +33.6% |
| 2016/12 | 229.21 | -1.4% |
| 2015/12 | 232.48 | -17.1% |
| 2014/12 | 280.34 | -1.2% |
| 2013/12 | 283.8 | -9.1% |
| 2012/12 | 312.26 | -1.5% |
| 2011/12 | 316.96 | -22.5% |
| 2010/12 | 409.22 | - |