日期	单位净值
2017-05-31	1.2704
2017-05-26	1.2704
2017-05-19	1.3154
2017-05-12	1.3118
2017-05-05	1.3245
2017-04-28	1.3294
2017-04-21	1.3355
2017-04-14	1.3460
2017-04-07	1.3858
2017-03-31	1.3702
2017-03-24	1.3702
2017-03-17	1.2877
2017-03-10	1.2664
2017-03-03	1.2356
2017-02-28	1.2266
2017-02-24	1.2343