Date	Rate
2023/02/06	0.558
2023/02/04	0.557
2023/02/03	0.556
2023/02/02	0.555
2023/02/01	0.556
2023/01/31	0.556
2023/01/30	0.555
2023/01/19	0.621
2023/01/18	0.559
2023/01/17	0.557
2023/01/16	0.556
2023/01/13	0.556
2023/01/12	0.557
2023/01/11	0.556
2023/01/10	0.556
2023/01/09	0.555
2023/01/07	0.556
2023/01/06	0.556
2023/01/05	0.556
2023/01/04	0.555