日期	单位净值
2017-04-28	1.0164
2017-04-21	1.0152
2017-04-17	1.0176
2017-04-14	1.0179
2017-04-07	1.0180
2017-03-31	1.0224
2017-03-24	1.0202
2017-03-17	1.0191
2017-03-10	1.0179
2017-03-03	1.0196
2017-02-28	1.0193
2017-02-24	1.0192
2017-02-17	1.0184
2017-02-10	1.0170
2017-02-03	1.0169
2017-01-26	1.0162