| DEレシオ（％） | 前年比（％） | |
|---|---|---|
| 2024/12 | 15.8 | +7.0% |
| 2023/12 | 14.77 | -8.0% |
| 2022/12 | 16.06 | -40.4% |
| 2021/12 | 26.95 | -15.8% |
| 2020/12 | 31.99 | +9.5% |
| 2019/12 | 29.22 | -36.1% |
| 2018/12 | 45.7 | +18.7% |
| 2017/12 | 38.5 | -12.9% |
| 2016/12 | 44.19 | +22.0% |
| 2015/12 | 36.22 | -32.3% |
| 2014/12 | 53.49 | +0.3% |
| 2013/12 | 53.35 | +69.4% |
| 2012/12 | 31.5 | -24.7% |
| 2011/12 | 41.85 | +38.5% |
| 2010/12 | 30.21 | - |