| （単位：%） | DEレシオ（％） | 前年比（％） |
|---|---|---|
| 2024/12 | 2.4 | +43.0% |
| 2023/12 | 1.7 | -81.6% |
| 2022/12 | 9.0 | +316.1% |
| 2021/12 | 2.2 | +553.1% |
| 2020/12 | 0.3 | -99.7% |
| 2019/12 | 126.5 | -12.3% |
| 2018/12 | 144.3 | -13.0% |
| 2017/12 | 165.8 | -34.7% |
| 2016/12 | 254.1 | +12.3% |
| 2015/12 | 226.2 | +38.0% |
| 2014/12 | 164.0 | +53.9% |
| 2013/12 | 106.6 | -27.1% |
| 2012/12 | 146.1 | +10.7% |
| 2011/12 | 132.0 | +11.9% |
| 2010/12 | 118.0 | - |