Date	Rate
2021/02/22	0.080
2021/02/20	0.082
2021/02/19	0.082
2021/02/18	0.080
2021/02/17	0.080
2021/02/09	0.089
2021/02/08	0.081
2021/02/05	0.081
2021/02/04	0.080
2021/02/03	0.080
2021/02/02	0.079
2021/02/01	0.079
2021/01/29	0.080
2021/01/28	0.079
2021/01/27	0.080
2021/01/26	0.079
2021/01/25	0.079
2021/01/22	0.080
2021/01/21	0.079
2021/01/20	0.079