Date	Rate
2021/06/21	0.081
2021/06/18	0.083
2021/06/17	0.082
2021/06/16	0.080
2021/06/15	0.080
2021/06/11	0.080
2021/06/10	0.080
2021/06/09	0.080
2021/06/08	0.080
2021/06/07	0.080
2021/06/04	0.082
2021/06/03	0.080
2021/06/02	0.080
2021/06/01	0.080
2021/05/31	0.080
2021/05/28	0.081
2021/05/27	0.079
2021/05/26	0.080
2021/05/25	0.079
2021/05/24	0.079