Date	Rate
2021/04/28	0.080
2021/04/27	0.080
2021/04/26	0.080
2021/04/23	0.080
2021/04/22	0.079
2021/04/21	0.079
2021/04/20	0.079
2021/04/19	0.080
2021/04/16	0.080
2021/04/15	0.080
2021/04/14	0.080
2021/04/13	0.080
2021/04/12	0.080
2021/04/09	0.081
2021/04/08	0.080
2021/04/07	0.080
2021/04/06	0.080
2021/04/01	0.083
2021/03/31	0.080
2021/03/30	0.081