| 日期 | | | 价差 |
|---|
| 05-22 | ￥20530 | ￥20350 | 180 |
| 05-21 | ￥20480 | ￥20320 | 160 |
| 05-20 | ￥20380 | ￥20220 | 160 |
| 05-19 | ￥20390 | ￥20250 | 140 |
| 05-16 | ￥20410 | ￥20280 | 130 |
| 05-15 | ￥20510 | ￥20360 | 150 |
| 05-14 | ￥20400 | ￥20200 | 200 |
| 05-13 | ￥20200 | ￥20000 | 200 |
| 05-12 | ￥20010 | ￥19820 | 190 |
| 05-09 | ￥19810 | ￥19600 | 210 |
| 05-08 | ￥19830 | ￥19600 | 230 |
| 05-07 | ￥19800 | ￥19600 | 200 |
| 05-06 | ￥20060 | ￥19860 | 200 |
| 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 |