日期	单位净值
2017-05-19	0.9850
2017-05-12	0.9830
2017-05-05	0.9893
2017-04-30	0.9951
2017-04-28	0.9952
2017-04-21	0.9980
2017-04-20	0.9979
2017-04-17	1.0080
2017-04-14	1.0081
2017-04-07	1.0145
2017-03-31	1.0043
2017-03-24	1.0144
2017-03-20	1.0122
2017-03-17	1.0117
2017-03-10	1.0089
2017-03-03	1.0087