日期	单位净值
2017-05-12	0.9993
2017-05-05	1.0017
2017-04-28	1.0015
2017-04-21	1.0036
2017-04-20	1.0030
2017-04-14	1.0036
2017-04-07	1.0022
2017-03-31	0.9998
2017-03-24	1.0000
2017-03-20	1.1075
2017-03-17	1.1088
2017-03-10	1.1052
2017-03-03	1.1039
2017-02-24	1.1004
2017-02-20	1.0925
2017-02-17	1.0886