日期	单位净值
2017-07-28	0.8889
2017-07-21	0.9160
2017-07-14	0.9516
2017-07-07	0.9643
2017-06-30	0.9879
2017-06-23	0.9695
2017-06-16	0.9874
2017-06-09	1.0145
2017-05-31	0.9532
2017-05-26	0.9550
2017-05-19	0.9791
2017-05-12	0.9499
2017-05-05	0.9681
2017-04-28	0.9733
2017-04-21	0.9227
2017-04-14	0.9256