Date	Rate
2021/08/05	0.080
2021/08/04	0.079
2021/08/03	0.080
2021/08/02	0.080
2021/07/30	0.082
2021/07/29	0.081
2021/07/28	0.081
2021/07/27	0.081
2021/07/26	0.081
2021/07/23	0.082
2021/07/22	0.082
2021/07/21	0.083
2021/07/20	0.084
2021/07/19	0.083
2021/07/16	0.082
2021/07/15	0.083
2021/07/14	0.083
2021/07/13	0.082
2021/07/12	0.080
2021/07/09	0.092