Date	Rate
2013/6/5	0.387
2013/6/4	0.386
2013/6/3	0.387
2013/5/31	0.386
2013/5/30	0.387
2013/5/29	0.387
2013/5/28	0.386
2013/5/27	0.386
2013/5/24	0.386
2013/5/23	0.386
2013/5/22	0.387
2013/5/21	0.385
2013/5/20	0.386
2013/5/17	0.386
2013/5/16	0.386
2013/5/15	0.387
2013/5/14	0.387
2013/5/13	0.384
2013/5/10	0.386
2013/5/9	0.385