日期	单位净值
2017-05-31	1.0032
2017-05-26	1.0115
2017-05-19	1.0270
2017-05-12	0.9938
2017-05-05	1.0053
2017-04-28	1.0300
2017-04-21	1.0097
2017-04-20	1.0123
2017-04-14	0.9829
2017-04-07	0.9965
2017-03-31	0.9800
2017-03-24	1.0127
2017-03-20	1.0076
2017-03-17	1.0025