日期	单位净值
2015-04-20	0.8417
2015-04-17	0.8428
2015-04-10	0.8420
2015-04-03	0.8416
2015-03-27	0.8413
2015-03-20	0.8410
2015-03-13	0.8415
2015-03-06	0.8403
2015-02-27	0.8398
2015-02-17	0.8395
2015-02-13	0.8400
2015-02-06	0.8392
2015-01-30	0.8387
2015-01-23	0.8383
2015-01-20	0.8381
2015-01-16	0.8390