Date	Rate
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
2007/5/4	1.726
2007/5/3	1.735
2007/5/2	1.733
2007/4/30	1.732
2007/4/27	1.728
2007/4/26	1.729
2007/4/25	1.73
2007/4/24	1.73
2007/4/23	1.72
2007/4/20	1.722
2007/4/19	1.722
2007/4/18	1.72
2007/4/17	1.72
2007/4/16	1.723