Date	Rate
2007/6/1	1.88
2007/5/31	2.998
2007/5/30	3.197
2007/5/29	3.27
2007/5/28	3.905
2007/5/25	2.622
2007/5/24	1.924
2007/5/23	1.763
2007/5/22	1.748
2007/5/21	1.734
2007/5/18	1.727
2007/5/17	1.722
2007/5/16	1.721
2007/5/15	1.721
2007/5/14	1.722
2007/5/11	1.722
2007/5/10	1.724
2007/5/9	1.723
2007/5/8	1.721
2007/5/7	1.724