Date	Rate
2015/7/7	0.387
2015/7/6	0.388
2015/7/3	0.387
2015/7/2	0.387
2015/7/1	0.387
2015/6/30	0.386
2015/6/29	0.387
2015/6/26	0.388
2015/6/25	0.387
2015/6/24	0.387
2015/6/23	0.387
2015/6/22	0.387
2015/6/18	0.387
2015/6/17	0.387
2015/6/16	0.387
2015/6/15	0.388
2015/6/12	0.388
2015/6/11	0.387
2015/6/10	0.388
2015/6/9	0.388