日期	单位净值
2015-04-24	1.0268
2015-04-20	1.0265
2015-04-17	1.0285
2015-04-10	1.0275
2015-04-03	1.0273
2015-03-27	1.0269
2015-03-20	1.0264
2015-03-13	1.0281
2015-03-06	1.0264
2015-02-27	1.0258
2015-02-17	1.0255
2015-02-13	1.0270
2015-02-06	1.0260
2015-01-30	1.0251
2015-01-23	1.0247
2015-01-20	1.0244