日期	单位净值
2017-05-31	0.9981
2017-05-26	0.9982
2017-05-19	0.9983
2017-05-12	0.9985
2017-05-05	0.9987
2017-04-28	0.9989
2017-04-21	0.9990
2017-04-14	0.9992
2017-04-07	0.9994
2017-03-31	0.9995
2017-03-24	0.9997
2017-03-17	0.9998
2017-03-10	1.0001