Date	Rate
2015/12/18	0.239
2015/12/17	0.305
2015/12/16	0.302
2015/12/15	0.301
2015/12/14	0.302
2015/12/11	0.301
2015/12/10	0.300
2015/12/9	0.301
2015/12/8	0.301
2015/12/7	0.301
2015/12/4	0.301
2015/12/3	0.302
2015/12/2	0.301
2015/12/1	0.300
2015/11/30	0.306
2015/11/27	0.303
2015/11/26	0.301
2015/11/25	0.301
2015/11/24	0.301
2015/11/23	0.300