日期	单位净值
2017-04-21	1.0679
2017-04-14	1.0530
2017-04-07	1.0637
2017-03-31	1.0554
2017-03-24	1.0666
2017-03-17	1.0444
2017-03-10	1.0392
2017-03-03	1.0231
2017-02-24	1.0313
2017-02-17	1.0211
2017-02-10	1.0113
2017-02-03	1.0006
2017-01-26	1.0029
2017-01-20	0.9999
2017-01-13	0.9999