Date	Rate
2021/12/27	0.085
2021/12/24	0.085
2021/12/23	0.082
2021/12/22	0.083
2021/12/21	0.081
2021/12/20	0.083
2021/12/17	0.082
2021/12/16	0.081
2021/12/15	0.082
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