| 日期 | | | 价差 |
|---|
| 04-19 | ￥20570 | ￥20340 | 230 |
| 04-18 | ￥20500 | ￥20210 | 290 |
| 04-17 | ￥20460 | ￥20150 | 310 |
| 04-16 | ￥20520 | ￥20250 | 270 |
| 04-15 | ￥21010 | ￥20740 | 270 |
| 04-12 | ￥20880 | ￥20560 | 320 |
| 04-11 | ￥20660 | ￥20290 | 370 |
| 04-10 | ￥20550 | ￥20180 | 370 |
| 04-09 | ￥20410 | ￥20070 | 340 |
| 04-08 | ￥20370 | ￥20110 | 260 |
| 04-03 | ￥20040 | ￥19740 | 300 |
| 04-02 | ￥19830 | ￥19580 | 250 |
| 04-01 | ￥19770 | ￥19530 | 240 |
| 03-29 | ￥19730 | ￥19470 | 260 |
| 03-28 | ￥19580 | ￥19340 | 240 |
| 03-27 | ￥19520 | ￥19260 | 260 |
| 03-26 | ￥19680 | ￥19450 | 230 |
| 03-25 | ￥19600 | ￥19350 | 250 |
| 03-22 | ￥19550 | ￥19310 | 240 |
| 03-21 | ￥19590 | ￥19340 | 250 |
| 03-20 | ￥19490 | ￥19230 | 260 |