日期	单位净值
2017-05-31	1.5217
2017-05-26	1.5156
2017-05-19	1.5135
2017-05-12	1.4950
2017-05-05	1.5045
2017-04-28	1.5037
2017-04-21	1.5124
2017-04-20	1.5149
2017-04-14	1.5019
2017-04-07	1.5232
2017-03-31	1.5068
2017-03-24	1.5187
2017-03-20	1.4967
2017-03-17	1.4975
2017-03-10	1.4951
2017-03-03	1.4888