日期	单位净值
2017-03-31	2.0574
2017-03-24	2.0471
2017-03-20	1.9741
2017-03-17	1.9790
2017-03-10	1.9269
2017-03-03	1.8614
2017-02-24	1.8787
2017-02-20	1.8673
2017-02-17	1.8301
2017-02-10	1.7941
2017-02-03	1.7925
2017-01-26	1.7907
2017-01-20	1.7728
2017-01-13	1.7807
2017-01-06	1.8434
2016-12-30	1.8005