Date	Rate
2021/12/14	0.083
2021/12/13	0.082
2021/12/10	0.083
2021/12/09	0.083
2021/12/08	0.082
2021/12/07	0.082
2021/12/06	0.082
2021/12/03	0.082
2021/12/02	0.082
2021/12/01	0.080
2021/11/30	0.081
2021/11/29	0.082
2021/11/26	0.084
2021/11/25	0.081
2021/11/24	0.080
2021/11/23	0.080
2021/11/22	0.080
2021/11/19	0.081
2021/11/18	0.082
2021/11/17	0.081