| Date | Rate |
|---|---|
| 2019/5/21 | 0.180 |
| 2019/5/20 | 0.178 |
| 2019/5/17 | 0.183 |
| 2019/5/16 | 0.185 |
| 2019/5/15 | 0.185 |
| 2019/5/14 | 0.185 |
| 2019/5/13 | 0.183 |
| 2019/5/10 | 0.186 |
| 2019/5/9 | 0.182 |
| 2019/5/8 | 0.184 |
| 2019/5/7 | 0.187 |
| 2019/5/6 | 0.189 |
| 2019/5/3 | 0.190 |
| 2019/5/2 | 0.190 |
| 2019/4/30 | 0.195 |
| 2019/4/29 | 0.194 |
| 2019/4/26 | 0.191 |
| 2019/4/25 | 0.191 |
| 2019/4/24 | 0.190 |
| 2019/4/23 | 0.187 |
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