日期	单位净值
2017-05-12	1.0182
2017-05-05	1.0172
2017-04-28	1.0025
2017-04-21	1.0036
2017-04-14	1.0109
2017-04-07	1.0101
2017-04-01	1.0101
2017-03-31	1.0098
2017-03-24	1.0066
2017-03-17	1.0032
2017-03-15	1.0010
2017-03-10	1.0022
2017-03-03	1.0085
2017-02-24	1.0103
2017-02-17	1.0081
2017-02-15	1.0077