Date	Rate
2015/4/24	0.387
2015/4/23	0.387
2015/4/22	0.387
2015/4/21	0.388
2015/4/20	0.388
2015/4/17	0.387
2015/4/16	0.388
2015/4/15	0.387
2015/4/14	0.387
2015/4/13	0.387
2015/4/10	0.387
2015/4/9	0.387
2015/4/8	0.387
2015/4/7	0.387
2015/4/2	0.388
2015/4/1	0.386
2015/3/31	0.388
2015/3/30	0.387
2015/3/27	0.388
2015/3/26	0.388