日期	单位净值
2017-04-21	0.9735
2017-04-20	0.9755
2017-04-14	1.0167
2017-04-07	1.0035
2017-03-31	0.9811
2017-03-24	1.0045
2017-03-20	1.0127
2017-03-17	0.9980
2017-03-10	0.9966
2017-03-03	0.9983