日期	单位净值
2017-08-04	1.1330
2017-07-28	1.0255
2017-07-21	1.0472
2017-07-14	1.0216
2017-07-07	0.9973
2017-06-30	0.9723
2017-06-23	0.9599
2017-06-20	0.9640
2017-06-16	0.9558
2017-06-09	0.9512
2017-06-02	0.9293
2017-05-26	0.9410
2017-05-19	0.9587
2017-05-12	0.9454
2017-05-05	0.9598
2017-04-28	0.9863