日期	单位净值
2015-04-03	1.0250
2015-04-02	1.0224
2015-04-01	1.0437
2015-03-31	1.0314
2015-03-30	1.0384
2015-03-29	1.0311
2015-03-28	1.0311
2015-03-27	1.0311