日期	单位净值
2015-04-20	1.1034
2015-04-17	1.0861
2015-04-10	1.0697
2015-04-03	1.1256
2015-03-31	1.0758
2015-03-27	1.0336
2015-03-20	0.9784
2015-03-13	0.9202
2015-03-06	0.9160
2015-02-27	0.9115
2015-02-17	0.8765
2015-02-13	0.8693
2015-02-06	0.8542
2015-01-30	0.8624
2015-01-23	0.8639
2015-01-20	0.8460