日期	单位净值
2017-04-21	1.9453
2017-04-20	1.9588
2017-04-14	1.8931
2017-04-07	1.8962
2017-03-31	1.8603
2017-03-24	1.8563
2017-03-20	1.7909
2017-03-17	1.7688
2017-03-10	1.7878
2017-03-03	1.7536
2017-02-24	1.7633
2017-02-20	1.7517
2017-02-17	1.6933
2017-02-10	1.6585
2017-02-03	1.5785
2017-01-26	1.5950