日期	单位净值
2017-08-02	1.0062
2017-07-31	1.0409
2017-07-28	1.0403
2017-07-21	1.0389
2017-07-14	1.0376
2017-07-07	1.0362
2017-06-30	1.0349
2017-06-23	1.0335
2017-06-16	1.0321
2017-06-09	1.0308
2017-05-31	1.0290
2017-05-27	1.0282
2017-05-26	1.0280
2017-05-22	0.9993
2017-05-19	1.0267
2017-05-12	1.0254