| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 181.9 | +2.1% |
| 2023/12 | 178.1 | +51.0% |
| 2022/12 | 117.9 | -51.3% |
| 2021/12 | 241.9 | -21.7% |
| 2020/12 | 308.8 | +12.9% |
| 2019/12 | 273.6 | -19.3% |
| 2018/12 | 339.2 | -10.8% |
| 2017/12 | 380.2 | +18.9% |
| 2016/12 | 319.9 | -15.0% |
| 2015/12 | 376.2 | +16.8% |
| 2014/12 | 322.2 | +0.9% |
| 2013/12 | 319.5 | -10.6% |
| 2012/12 | 357.3 | -3.7% |
| 2011/12 | 371.0 | - |