| 日期 | | | 价差 |
|---|
| 08-22 | ￥20950 | ￥20720 | 230 |
| 08-21 | ￥20930 | ￥20670 | 260 |
| 08-20 | ￥20780 | ￥20510 | 270 |
| 08-19 | ￥20840 | ￥20580 | 260 |
| 08-18 | ￥20800 | ￥20540 | 260 |
| 08-15 | ￥20960 | ￥20730 | 230 |
| 08-14 | ￥20940 | ￥20730 | 210 |
| 08-13 | ￥21010 | ￥20750 | 260 |
| 08-12 | ￥20910 | ￥20640 | 270 |
| 08-11 | ￥20910 | ￥20620 | 290 |
| 08-08 | ￥20910 | ￥20640 | 270 |
| 08-07 | ￥20970 | ￥20700 | 270 |
| 08-06 | ￥20910 | ￥20620 | 290 |
| 08-05 | ￥20810 | ￥20510 | 300 |
| 08-04 | ￥20770 | ￥20480 | 290 |
| 08-01 | ￥20800 | ￥20530 | 270 |
| 07-31 | ￥20860 | ￥20590 | 270 |
| 07-30 | ￥20940 | ￥20670 | 270 |
| 07-29 | ￥20900 | ￥20610 | 290 |
| 07-28 | ￥20930 | ￥20650 | 280 |
| 07-25 | ￥21050 | ￥20770 | 280 |
| 07-24 | ￥21010 | ￥20720 | 290 |