日期	单位净值
2017-04-28	0.6880
2017-04-21	0.6938
2017-04-20	0.6968
2017-04-14	0.7035
2017-04-07	0.6997
2017-03-31	0.6996
2017-03-24	0.7108
2017-03-20	0.7140
2017-03-17	0.7121
2017-03-10	0.7086
2017-03-03	0.7149
2017-02-24	0.7168
2017-02-20	0.7070
2017-02-17	0.7097
2017-02-10	0.7156
2017-02-03	0.7128