日期	单位净值
2014-05-23	1.0404
2014-05-16	1.0380
2014-05-09	1.0364
2014-04-30	1.0304
2014-04-25	1.0274
2014-04-18	1.0229
2014-04-11	1.0182
2014-04-04	1.0179
2014-03-28	1.0208
2014-03-21	1.0223
2014-03-14	1.0211
2014-03-07	1.0135
2014-02-28	0.9908
2014-02-21	0.9905
2014-02-14	0.9817
2014-02-07	0.9759