| 日期 | | | 价差 |
|---|
| 04-30 | ￥20250 | ￥20050 | 200 |
| 04-29 | ￥20220 | ￥20020 | 200 |
| 04-28 | ￥20180 | ￥19950 | 230 |
| 04-25 | ￥20290 | ￥20060 | 230 |
| 04-24 | ￥20210 | ￥19980 | 230 |
| 04-23 | ￥20150 | ￥19900 | 250 |
| 04-22 | ￥20110 | ￥19890 | 220 |
| 04-21 | ￥20180 | ￥19910 | 270 |
| 04-18 | ￥20080 | ￥19820 | 260 |
| 04-17 | ￥20060 | ￥19790 | 270 |
| 04-16 | ￥19900 | ￥19690 | 210 |
| 04-15 | ￥19920 | ￥19670 | 250 |
| 04-14 | ￥20030 | ￥19760 | 270 |
| 04-11 | ￥19870 | ￥19570 | 300 |
| 04-10 | ￥20090 | ￥19880 | 210 |
| 04-09 | ￥19670 | ￥19530 | 140 |
| 04-08 | ￥20050 | ￥19870 | 180 |
| 04-07 | ￥20140 | ￥19940 | 200 |
| 04-03 | ￥20760 | ￥20550 | 210 |
| 04-02 | ￥20790 | ￥20550 | 240 |
| 04-01 | ￥20820 | ￥20560 | 260 |