日期	单位净值
2017-05-12	0.9911
2017-05-05	0.9915
2017-04-28	0.9919
2017-04-21	0.9923
2017-04-14	0.9926
2017-04-07	0.9930
2017-03-31	0.9934
2017-03-24	0.9938
2017-03-17	0.9941
2017-03-10	0.9945
2017-03-03	0.9949
2017-02-28	0.9951
2017-02-24	0.9953
2017-02-17	0.9956
2017-02-10	0.9960
2017-02-03	0.9964