日期	单位净值
2017-05-19	0.9686
2017-05-12	0.9544
2017-05-05	0.9775
2017-04-28	0.9993
2017-04-21	0.9961
2017-04-20	0.9928
2017-04-14	0.9969
2017-04-07	1.0204
2017-03-31	0.9954
2017-03-24	1.0106
2017-03-20	0.9900
2017-03-17	0.9861
2017-03-10	0.9595
2017-03-03	0.9588
2017-02-24	0.9696
2017-02-20	0.9501