日期	单位净值
2017-08-04	1.0079
2017-07-31	1.0098
2017-07-28	1.0096
2017-07-21	1.0088
2017-07-14	1.0080
2017-07-07	1.0062
2017-06-30	1.0049
2017-06-23	1.0006
2017-06-16	0.9966
2017-06-09	0.9963
2017-05-31	0.9966
2017-05-26	0.9964
2017-05-19	0.9960
2017-05-12	0.9959
2017-05-05	0.9955
2017-04-28	0.9953